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The ratio of the resistances of a conduc...

The ratio of the resistances of a conductor at a temperature of `15^(@)C` to its resistance at a temperature of `37.5^(@)C` is `4:5`. The temperature coefficient of resistance of the conductor is

A

`(1)/(25).^(@)C^(-1)`

B

`(1)/(50).^(@)C^(-1)`

C

`(1)/(80).^(@)C^(-1)`

D

`(1)/(75).^(@)C^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
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