Question

A uniform resistance wire of resistance R is streched to make its length double. what will be the new resistance. ​

Answer 1

Answer:

As the length of wire gets doubled, the cross-sectional area will become half of its previous value because volume of wire remains constant. Hence, we can see that the new resistance is four times the previous resistance. Option C is correc

Answer 2

Answer:

4 R

Explanation:

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