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The heat developed in an electric wire o...

The heat developed in an electric wire of resistance R by a current I for a time t is

A

`(I^(2)Rt)/(4.2)cal`

B

`I^(2)R`

C

`(I^(2)R)/(4.2t)cal`

D

`(Rt)/(4.2I^(2))cal`

Text Solution

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The correct Answer is:
A
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