{"id":94059,"date":"2023-10-11T10:36:44","date_gmt":"2023-10-11T08:36:44","guid":{"rendered":"https:\/\/gahzly.com\/%d9%85%d8%a7-%d8%a7%d9%84%d8%ae%d8%a7%d8%b5%d9%8a%d8%a9-%d8%a7%d9%84%d8%aa%d9%8a-%d8%aa%d8%b2%d8%af%d8%a7%d8%af-%d9%81%d9%8a-%d8%a7%d9%84%d8%b3%d9%84%d9%83-%d8%a5%d8%b0%d8%a7-%d9%83%d8%a7%d9%86-%d8%a3\/"},"modified":"2023-10-31T18:17:56","modified_gmt":"2023-10-31T16:17:56","slug":"what-property-does-the-wire-increase-if-it-is-longer","status":"publish","type":"post","link":"https:\/\/gahzly.com\/en\/\u0645\u0642\u0627\u0644\/what-property-does-the-wire-increase-if-it-is-longer\/","title":{"rendered":"What property does the wire increase if it is longer?"},"content":{"rendered":"
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What property does the wire increase if it is longer?<\/span><\/span><\/h1>\n<\/div>\n<\/header>\n
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What property does the wire increase if it is longer?<\/span><\/span><\/figure>\n<\/div>\n<\/div>\n

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What property does the wire increase if it is longer?<\/span><\/span><\/h2>\n

It is Electrical <\/span><\/span><\/strong>\u00a0Resistance\u00a0<\/span><\/span><\/strong> .<\/span><\/span><\/p>\n

Electrical resistance is an obstruction to the flow of electric current in an electrical conductor or lighting unit. Then, the electrical source is exposed to what is known as electrical resistance, and this term is indicated by the symbol R. It is worth noting that every material has electrical resistance. This resistance is the reason behind conductors emitting heat. When exposed to an electric current, resistance is the journey of an electron in a winding, not a flat, path through the wires, which in itself is considered an obstacle to the flow of electrical charges. The electron meets the ions and collides with them through the conductor, bulb, or source of electricity used, and thus finds it difficult to move and flow. Current, from here, electrical resistance arises or occurs. Therefore, when the length of the wire increases, it becomes longer and thinner. Then the electrical charges will encounter an obstacle in moving through it, and thus the resistance increases. By analogy, electrical resistance is the property that increases in the wire as its length increases. We explain through The following linesA simple equation enables us to have a good understanding of electrical resistance:<\/span><\/span><\/p>\n

R<\/span><\/span><\/strong> : This letter is a symbol of the term electrical resistance<\/span><\/span><\/p>\n

P<\/span><\/span><\/strong> : indicates the resistance of the material<\/span><\/span><\/p>\n

L<\/span><\/span><\/strong> : indicates the length of the wire<\/span><\/span><\/p>\n

A<\/span><\/span><\/strong> : Refers to the cross-sectional area of \u200b\u200ba conductor or electrical source<\/span><\/span><\/p>\n

We will review next an example based on the previous equation, in order to clarify the percentage of the original resistance in the normal length of the wire and its percentage after increasing the length of the wire. When the length of the wire indicated by the letter L is doubled, it turns into 2L, and therefore with the increase in length, the cross-sectional area of \u200b\u200bthe conductor decreases to half its value. , which existed before the length of the wire increased, so the symbol for A, expressed in the equation, will turn into A’ or 2A, and thus the equation turns into:<\/span><\/span><\/p>\n

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Then the resistance here becomes 4R, meaning that the resistance doubled with the increase in the length of the wire, which led to an increase in the resistance and a decrease in the cross-section in the conductor. <\/span>We conclude from the above that electrical resistance is directly proportional to the length of the wire indicated by the letter L, and inversely proportional to the cross section expressed in the equation by the symbol A.<\/span><\/span><\/p>\n

Electrical resistance Ohm’s law<\/span><\/span><\/h2>\n

In the following lines, we will explain the definition of resistance according to Ohm’s Law, which was established by the German scientist Georg Ohm, to measure the rate of resistance, which increases as the length of the electrical wire increases. The equation of the law is as follows:<\/span><\/span><\/p>\n

V \u221d I V = IR<\/p>\n

V<\/span><\/span><\/strong> : is the voltage measured in volts in the conductor<\/span><\/span><\/p>\n

I<\/span><\/span><\/strong> : The electrical current in the conductor, measured in amperes<\/span><\/span><\/p>\n

R<\/span><\/span><\/strong> : symbol to express electrical resistance<\/span><\/span><\/p>\n

The electrical resistance that will be calculated through this Ohm’s Law equation is <\/span><\/span>\u00a0the ratio between the conductor’s voltage measured in volts V and that applied to the electrical current flowing through it<\/span><\/span><\/strong> , and therefore the equation will be arranged again in the following form, in order to express the electrical resistance according to the famous Ohm’s Law:<\/span><\/span><\/p>\n

Materials and electrical resistance<\/span><\/span><\/h2>\n

Since resistance is a measure of the extent to which the material used in the conductor is able to resist electrical flow, therefore, we explain below some materials and their ability to resist electricity. Materials with low percentages are good conductors of electricity and therefore are less resistant:<\/span><\/span><\/p>\n