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Two conductors have the same resistance at `0^@C` but their temperature coefficient of resistanc are `alpha_1 and alpha_2`. The respective temperature coefficients of their series and parallel combinations are nearly

A

`(alpha_(1)+alpha_(2))/2,alpha_(1)+alpha_(2)`

B

`alpha_(1)+alpha_(2),(alpha_(1)+alpha_(2))/2`

C

`alpha_(1)+alpha_(2),(alpha_(1)alpha_(2))/(alpha_(1)+alpha_(2))`

D

`(alpha_(1)+alpha_(2))/2,(alpha_(1)+alpha_(2))/2`

Text Solution

Verified by Experts

The correct Answer is:
D
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