A copper wire is stretched to make it 0.5% longer. The percentage change in its electrical resistance if its volume remains unchanged is:

A copper wire is stretched to make it 0.5% longer. The percentage chan

1.	A copper wire is stretched to make it 0.5% longer. The percentage change in its electrical resistance if its volume remains unchanged is:
A.	2.0%
B.	2.5%
C.	1.0%
D.	0.5%
Answer» D. 0.5%

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A copper wire is stretched to make it 0.5% longer. The percentage change in its electrical resistance if its volume remains unchanged is:

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