Science, asked by Sagnikbanik, 10 months ago

a wire of resistivity r is stretched to double its length how does it affect the a.resistance and b.resistivity​

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Answered by ushajaiswal94
1

Answer:

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.

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