Question

If a resistive wire is uniformly stretched what will be a change in its resistance? 


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Answer 1

Answer:

The new resistance of the wire becomes four times its old resistance. The wire's length is stretched to twice its length i.e. area of cross section decreases or becomes half, since volume remains the same.

Explanation:

Answer 2

Answer:

it's resistance will decrease

Explanation:

when we will stretch its electrons would move away and it will result in decrease in its resistance. for eg. copper wire.