Question

By what factor will the resistivity of an electric circuit change if the length of the wire is doubled?​

Answer 1

Explanation:

By what factor will the resistivity of an electric circuit change if the length of the wire is doubled?

Resistivity will be sane bcz it is independent of length.

Answer 2

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Resistivity Summary

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.