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A 5^(@)C rise in the temperature is obse...

A `5^(@)C` rise in the temperature is observed in a conductor by passing some current. When the current is doubled, then rise in temperature will be equal to

A

`5^(@)`

B

`10^(@)`

C

`20^(@)`

D

`40^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Deltat_(1)/(Deltat_(2)) = i_(1)^(2) / (I_(2)^(2)) Deltat_(2) = 20^(@)C`
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