An electric wire is stretched to increas...

An electric wire is stretched to increase its length by 25%, keeping area of cross section same. By what % will the resistance be increased and what will be the increase in its resistivity?

A

Resistance = 75%, resistivity = 25%

B

Resistance = 25%, resistivity = 75%

C

Resistance -25%, resistivity=no change

D

Resistance = 75%, resistivity=no change

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The correct Answer is:

C

Resistance -25%, resistivity=no change

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