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Two different conductors have same resis...

Two different conductors have same resistance at `0^@` C It is found that the resistance of the first conductor at `t_1^@` C is equal to the resistance of the second conductor at `t_2^@` C. The ratio of temperature coefficients of resistance of the conductors,`a_1/a_2` is

A

`t_(1)/t_(2)`

B

`(t_(2)-t_(1))/t_(2)`

C

`(t_(2)-t_(1))/t_(1)`

D

`t_(2)/t_(1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`R_(0) (1 + alpha_(1)t_(1)) = R_(0) (1 + alpha_(2)t_(2))`
`rArr alpha_(1)/alpha_(2) = t_(2)/t_(1)`
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