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What is the effect on the product of res...

What is the effect on the product of resistivity and conductivity of a conductor when its temperature is increased?

A

May increase or decrease

B

Increases

C

Decreases

D

Remains constant

Text Solution

Verified by Experts

The correct Answer is:
D
Conductivity is defined as the reciprocal of resistivity of the material and hence the product of the two is equal to 1 and remains 1 at all temperatures. Thus, option (d) is correct
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