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Two conductors have the same resistance ...

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))/(2)`

B

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

C

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

D

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

Text Solution

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The correct Answer is:
A
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