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Two equal resistance at 0^(@)C with temp...

Two equal resistance at `0^(@)C` with temperature coefficient of resistance `alpha_(1)` and `alpha_(2)` joined in series act as a single resistance in a circuit the temperature coefficient of their single resistance will be

A

`alpha_1 + alpha_2`

B

`(alpha_1 alpha_2)/(alpha_1 +alpha_2)`

C

`(alpha_1 - alpha_2)/(2)`

D

`(alpha_1 + alpha_2)/(2)`

Text Solution

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The correct Answer is:
D
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