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Two resistance R(1) and R(2) are made of...

Two resistance `R_(1)` and `R_(2)` are made of different material. The temperature coefficient of the material of `R_(1)` is `alpha` and of the material of `R_(2)` is `-beta`. Then resistance of the series combination of `R_(1)` and `R_(2)` will not change with temperature, if `R_(1)//R_(2)` will not change with temperature if `R_(1)//R_(2)` equals

A

`alpha/beta`

B

`(alpha+beta)/(alpha-beta)`

C

`(alpha^(2) + beta^(2))/(alphabeta)`

D

`beta/alpha`

Text Solution

Verified by Experts

The correct Answer is:
D
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