Question

7.State the factor on which resistance of a conductor depends. How will resistance of conductor change
if it is stretched so that its length is doubled?​

Answer 1

Answer:

The resistance of a conductor is directly proportional to its length (L) as R ∝ L. Thus doubling its length will double its resistance, while halving its length would halve its resistance. Also the resistance of a conductor is inversely proportional to its cross-sectional area (A) as R ∝ 1/A.

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Answer 2

Explanation:

Doubling the Area of a Conductor

Thus the resistance of the conductor is inversely proportional to its area, that is: R 1/∝ A, or R ∝ 1/A. In other words, we would expect the electrical resistance of a conductor (or wire) to be proportionally less the greater is its cross-sectional area.

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