{"id":94647,"date":"2023-10-25T15:01:35","date_gmt":"2023-10-25T13:01:35","guid":{"rendered":"https:\/\/gahzly.com\/%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%a7%d9%84%d8%b9%d8%ab%d9%88%d8%b1-%d8%b9%d9%84%d9%89-%d8%a7%d9%84%d9%82%d9%88%d8%a9-%d8%a7%d9%84%d8%ad%d8%a7%d9%84%d9%8a%d8%a9-%d8%a7%d9%84%d8%b5%d9%8a%d8%ba-%d9%85\/"},"modified":"2023-10-25T15:09:27","modified_gmt":"2023-10-25T13:09:27","slug":"how-to-find-current-strength-formulas-with-calculation-examples","status":"publish","type":"post","link":"https:\/\/gahzly.com\/en\/\u0645\u0642\u0627\u0644\/how-to-find-current-strength-formulas-with-calculation-examples\/","title":{"rendered":"How to find current strength &#8211; formulas with calculation examples"},"content":{"rendered":"<div dir=\"auto\">\n<article id=\"post-31103\" class=\"post-31103 post type-post status-publish format-standard has-post-thumbnail category-osnovy-elektrotexniki-i-elektroniki\">\n<div class=\"post-content\">\n<div class=\"post-content-title-block\">\n<h1 class=\"post-title entry-title\" style=\"text-align: center\"><span style=\"vertical-align: inherit\"><span class=\"\" style=\"vertical-align: inherit\">How to find current strength &#8211; formulas with calculation examples<\/span><\/span><\/h1>\n<figure style=\"width: 628px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gahzly.com\/wp-content\/uploads\/2023\/10\/image-101.png\" alt=\"How to find current strength - formulas with calculation examples\" width=\"628\" height=\"510\" title=\"l\"><figcaption class=\"wp-caption-text\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">How to find current strength &#8211; formulas with calculation examples<\/span><\/span><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"entry clearfix\">\n<div class=\"section\">\n<div class=\"box visible\">\n<div class=\"vstup\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">In physics, much attention is paid to the energy and strength of devices, materials or objects. <\/span><span style=\"vertical-align: inherit\">In electrical engineering, these concepts play no less important role than in other branches of physics, because how quickly the installation will perform its function and what kind of load the power lines will withstand, depend on them. <\/span><span style=\"vertical-align: inherit\">Based on this information, substation transformers, generators for power plants and a section of conductors of transmission lines are selected. <\/span><span style=\"vertical-align: inherit\">In this article we will tell you how to find the power of electrical appliances or installation, knowing the power, voltage and current resistance.<\/span><\/span><\/div>\n<div class=\"soder\">\n<div id=\"kcmenu\" class=\"kc-title kc__title\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Content:<\/span><\/span><\/strong><\/div>\n<ul class=\"contents\">\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">identification<\/span><\/span><\/li>\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Formulas for calculating DC circuits<\/span><\/span><\/li>\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">For alternating current<\/span><\/span><\/li>\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Example of calculating the apparent power of an electric motor<\/span><\/span><\/li>\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Calculation of parallel and serial communication<\/span><\/span><\/li>\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">conclusion<\/span><\/span><\/li>\n<\/ul>\n<\/div>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">identification<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Power is a numerical quantity. <\/span><span style=\"vertical-align: inherit\">In the general case, it is equal to the ratio of work performed to time:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P = it \/ d<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">In simple words, this value determines how quickly the work is done. <\/span><span style=\"vertical-align: inherit\">It can be denoted not only by the letter P, but also W or N, measured in watts or kilowatts, which are abbreviated as W and kW, respectively.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Electrical energy is equal to the product of current and voltage or:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P = user interface<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">How is this work related? <\/span><span style=\"vertical-align: inherit\">U is the ratio of unit charge transfer work, and I define the charge passed through the wire per unit time. <\/span><span style=\"vertical-align: inherit\">As a result of the transformations, we obtained a formula by which you can find the power, knowing the current power and voltage<\/span><\/span><\/p>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Formulas for calculating DC circuits<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The easiest way to calculate the power of a DC circuit. <\/span><span style=\"vertical-align: inherit\">If there is a current strength and voltage, you only need to use the above formula to make the calculation:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P = user interface<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">But it is not always possible to find power by current and voltage. <\/span><span style=\"vertical-align: inherit\">If you do not know them, you can determine P, knowing the resistance and voltage:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">h=sh2 <\/span><\/span><sup><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\/<\/span><\/span><\/sup><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> r<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">You can also do the calculation, knowing the current and resistance:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">h = t <\/span><\/span><sup><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">2<\/span><\/span><\/sup><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> * r<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The last two formulas are convenient for calculating the strength of a circuit section, if you know which element RI or U, on which it is located.<\/span><\/span><\/p>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">For alternating current<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">However, for an AC electrical circuit, the total, active and reactive must be taken into account.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">We only note that in order to find the total power in a single-phase network by current and voltage, you need to multiply them:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">S = ui<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The result is obtained in volt-amperes, to determine the active power (watts), you need to multiply S by the coefficient cos\u0424. <\/span><span style=\"vertical-align: inherit\">It can be found in the technical documentation for the device.<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P = UIcos\u0424<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">To determine the reactive power (volt-ampere reaction), sinF is used instead of cos cos.<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">x = UIsinF<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Or express this expression:<\/span><\/span><\/p>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2016\/11\/vybor-stabilizatora-napryazheniya-3.png\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-15300\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2016\/11\/vybor-stabilizatora-napryazheniya-3.png\" alt=\"Full power account\" width=\"300\" height=\"152\" title=\"l\"><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">From here to calculate the required value.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">It is also easy to find the power in a three-phase network, to determine S (full), use the calculation formula for current and voltage:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">s = 3 u <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">f<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> i <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">f<\/span><\/span><\/sub><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">And knowledge of sin:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">s = 1.73 * u <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">l<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> i <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">l<\/span><\/span><\/sub><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1.73 or root 3 &#8211; this value is used to calculate three-phase circuits.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Then, by analogy, to find active P:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P = 3U <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">F<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> i <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">F<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> * cos = = 1.73 * U <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">l<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> i <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">l<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> * cos\u0424<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The reaction force can be determined:<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">x = 3 u <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">f<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> i <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">f<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> * sinf = 1.73 * u <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">l<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> i <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">l<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> * sinF<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">On this theoretical information ends and we will move on to practice.<\/span><\/span><\/p>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Example of calculating the apparent power of an electric motor<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Useful or mechanical power of electric motors on the shaft and electricity. <\/span><span style=\"vertical-align: inherit\">They differ depending on the value of the coefficient of performance (COP), and this information is usually indicated on the nameplate of the electric motor.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2018\/10\/kak-najti-moshhnost-1.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-31104\" title=\"Induction motor plate\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2018\/10\/kak-najti-moshhnost-1.jpg\" alt=\"Induction motor plate\" width=\"500\" height=\"365\" \/><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">From here, we take the data to calculate the connection in a triangle to a 380V linear U:<\/span><\/span><\/p>\n<ol>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">R <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">on shaft<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> = 160 kW = 160,000 watts<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">n = 0.94<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">cos 0.9 = 0.9<\/span><\/span><\/li>\n<li>U = 380<\/li>\n<\/ol>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Then you can find the active electrical energy by the formula:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">h = r <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">on column<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \/ n = 160,000 \/ 0.94 = 170213 watts<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">You can now find S:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">S = P \/ cos\u03c6 = 170213 \/ 0.9 = 189126 W<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">It is he who must be found and taken into account, choosing a cable or adapter for an electric motor. <\/span><span style=\"vertical-align: inherit\">On this, the calculations are over.<\/span><\/span><\/p>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Calculation of parallel and serial communication<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">When calculating the circuit of an electronic device, you often need to find the power allocated to a separate element. <\/span><span style=\"vertical-align: inherit\">Then you need to determine what the voltage drops on, if it is a series connection, or what current flows when connected in parallel, we will consider certain cases.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2018\/10\/kak-najti-moshhnost-2.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-31105\" title=\"Connecting chain\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2018\/10\/kak-najti-moshhnost-2.jpg\" alt=\"Connecting chain\" width=\"500\" height=\"200\" \/><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Here Itotal is:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">I = U \/ (R1 + R2) = 12 \/ (10 + 10) = 12\/20 = 0.6<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Public authority:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P=UI=12*0.6=7.2W<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">On each resistor R1 and R2, since their resistance is the same, the voltage drops along:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">U = IR = 0.6 * 10 = 6V<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Highlights:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">p <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">on resistor<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> = ui = 6 * 0.6 = 3.6 watts<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Then with parallel connection in such a circuit:<\/span><\/span><\/p>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2018\/10\/kak-najti-moshhnost-3.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-31106\" title=\"Parallel connection of circuit elements\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2018\/10\/kak-najti-moshhnost-3.jpg\" alt=\"Parallel connection of circuit elements\" width=\"500\" height=\"203\" \/><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">First, find the i in each branch:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">I <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> = U \/ R <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> = 12\/1 = 12 amps<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">I2 <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">=<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> U\/R2 <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">=<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> 12\/2 = 6 amps<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">It stands out for:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">y <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> = 12 * 6 = 72 <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">watts<\/span><\/span><\/sub><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">r2 = <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">12<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> * 12 = 144 <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">watts<\/span><\/span><\/sub><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Allocated in total:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P = UI = 12 * (6 + 12) = 216 watts<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Or through general resistance:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">R <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">gen<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> = (R <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> * R <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">2<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> ) \/ (R <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> + R <\/span><\/span><sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">2<\/span><\/span><\/sub><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> ) = (1 * 2) \/ (1 + 2) = 2\/3 = 0.66 ohms<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">I = 12 \/ 0.66 = 18 amps<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">P = 12 * 18 = 216 watts<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">All calculations coincided, so the values \u200b\u200bfound are correct.<\/span><\/span><\/p>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">conclusion<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">As you can see, finding the power or section of a circuit is not difficult at all, it does not matter if it is constant or changing. <\/span><span style=\"vertical-align: inherit\">It is more important to correctly determine the total resistance, current and voltage. <\/span><span style=\"vertical-align: inherit\">By the way, this knowledge is already enough to determine the circuit parameters and correctly select the elements &#8211; the number of watts for choosing resistors and cross-sections of cables and transformers. <\/span><span style=\"vertical-align: inherit\">Also, be careful when calculating the complete S when calculating the radical expression. <\/span><span style=\"vertical-align: inherit\">It is only worth noting that when paying utility bills we pay in kilowatt-hours or kilowatt-hours, it is equal to the amount of energy consumed over a period of time. <\/span><span style=\"vertical-align: inherit\">For example, if you connect a 2-kilowatt heater for half an hour, the meter will switch to 1 kW \/ h, and within an hour &#8211; 2 kW \/ h and so on by analogy.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"post-tags clearfix\"><\/div>\n<\/div>\n<\/article>\n<h4 style=\"text-align: right\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">If you have any inquiry, please contact us freely and we will be happy to serve you.<\/span><\/span><\/strong><\/h4>\n<p style=\"text-align: right\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45299 aligncenter\" title=\"Joyce box outside, 2 holes in the frame, specific sizes. Joyce box outside, 2 holes in the frame, specific sizes\" src=\"https:\/\/i0.wp.com\/www.gahzly.com\/wp-content\/uploads\/2020\/11\/%D9%85%D9%82%D8%A7%D9%841_1-1.jpg?resize=1140%2C776&amp;ssl=1\" alt=\"Joyce box outside, 2 holes in frame, specific sizes\" width=\"1140\" height=\"776\" data-recalc-dims=\"1\" \/><\/strong><\/p>\n<\/div>\n<div dir=\"auto\"><\/div>\n<div dir=\"auto\">\n<p style=\"text-align: center\"><a href=\"https:\/\/gahzly.com\/en\/\"><strong><em><u><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Jezli website for purchasing electrical appliances<\/span><\/span><\/u><\/em><\/strong><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">When we say Jeezly website, we are talking about one of the most famous Arab websites that was able, in a very short period of time, to achieve a very large demand for purchases from it by people from various parts and sectors of the Arab world.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">On the Jeezly website, you will find a joint look and all the products that you may need in your home, starting with those for kitchens or bathrooms, but even those for gardens, you will find them on this wonderful site.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">So, if you were lost before and did not know where to go to buy your products on the Internet, now you have the perfect solution, and all you have to do is go to the Jezli website and start choosing the products you want.<\/span><\/span><\/p>\n<p><strong><em><u><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27987\" title=\"Types of circuit breakers 18 - Work and applications l\" src=\"https:\/\/www.gahzly.com\/wp-content\/uploads\/2020\/05\/%D9%88%D8%B5%D9%84%D8%A9-%D8%B4%D8%B1%D9%8A%D8%B7-%D9%84%D9%8A%D8%AF.jpg\" alt=\"LED strip connection\" width=\"512\" height=\"512\" \/><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What are the features of Jeezly <\/span><\/span><a href=\"https:\/\/gahzly.com\/en\/\u0645\u0646\u062a\u062c\/power-strip-with-3-outlets-16-amp-black\/\">\u00a0<\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">?<\/span><\/span><\/u><\/em><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Since we are talking about a site that is preferred by many people around the world, there is no doubt that it is a site full of various features and characteristics. Therefore, we have decided to devote our next paragraph to pointing out the most prominent features of the Jezli site.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">One of the most prominent features of the site is the proportionality of prices. On the Jeezly website, you do not have to worry about the imaginary prices of the products, as is the case with most sites that display their products on the Internet.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The price of delivering products is very reasonable and not expensive, and the site accepts delivery to various countries, without forgetting that it accepts free shipping on some products.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">One of the features of the site is also the high quality of its products, as it is impossible to find a poor quality product. Rather, the Jezli website deals with the major companies, Philips, for example, and other famous brands, so you must remove from your mind the idea of \u200b\u200bthe poor quality of one of the products. <\/span><span style=\"vertical-align: inherit\">Another advantage of the site is that it does not specialize in one type of product, but rather you will find various types of products on it, for example, electrical appliances, hand tools, mechanical devices, paints, packages for establishing apartments, and many other types.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Jeezly website also accepts what is known as the shopping cart, which makes it easy for you to filter the products you want to buy and put them in one package in order to be able to pay with the click of a single button.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Accepts multiple payment methods.<\/span><\/span><\/p>\n<h4><a href=\"https:\/\/gahzly.com\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-50673 size-full\" title=\"Components of an electrical circuit Components of an electrical circuit\" src=\"https:\/\/gahzly.com\/wp-content\/uploads\/2021\/12\/editor-1s-188px-15.gif\" alt=\"Electrical circuit components\" width=\"188\" height=\"188\" \/><\/a><\/h4>\n<h4><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">We are pleased that you visit our social media pages, where we publish exclusive offers on our website.<\/span><\/span><\/h4>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Our Facebook page\u00a0 <\/span><\/span><a href=\"https:\/\/www.facebook.com\/Gahzlystore\/\" target=\"_blank\" rel=\"noopener\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">is here<\/span><\/span><\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Our Twitter account\u00a0 <\/span><\/span><a href=\"https:\/\/twitter.com\/gahzly1\" target=\"_blank\" rel=\"noopener\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">is here<\/span><\/span><\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>How to find current strength &#8211; formulas with calculation examples &nbsp; In physics, much attention is paid to the energy and strength of devices, materials or objects. In electrical engineering, these concepts play no less important role than in other branches of physics, because how quickly the installation will perform its function and what kind [&hellip;]<\/p>\n","protected":false},"author":1798,"featured_media":94643,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12318,7375,9932,12319],"tags":[],"class_list":["post-94647","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sell-online","category-articles","category-electricity-en","category-shop-online"],"featured_image_src":{"landsacpe":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/10\/image-101-628x445.png",628,445,true],"list":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/10\/image-101-463x348.png",463,348,true],"medium":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/10\/image-101-300x244.png",300,244,true],"full":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/10\/image-101.png",628,510,false]},"jetpack_featured_media_url":"https:\/\/gahzly.com\/wp-content\/uploads\/2023\/10\/image-101.png","_links":{"self":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts\/94647","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/users\/1798"}],"replies":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/comments?post=94647"}],"version-history":[{"count":0,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts\/94647\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/media\/94643"}],"wp:attachment":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/media?parent=94647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/categories?post=94647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/tags?post=94647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}