Question

What change you observe in the resistance of a conductor if length of the conductor is doubled.​

Answer 1

Answer:

Resistance will become double, as it directly proportional to the length and inversely to the area. In this case doubling the length that means it will become 2 times the initial value.

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Answer 2

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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.