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State the factors affecting the resistan...

State the factors affecting the resistance of a conductor.

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Resistance of a wire depends on:
(i) Length of the wire: Resistance is directly proportional to the length of a wire.
(ii) Area of cross-section of the wire: Resistance is inversely proportional to the area of crosssection the wire.
(iii) The temperature of the wire: Normally, the resistance of a wire increase with the increase temperature of the wire. There is no simple mathematical function to describe these relationship.
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