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A resistance coil of 60 omega is immerse...

A resistance coil of `60 omega` is immersed in 42 kg of water. A current of 7 A is passed through it. The rise in temperature of water per minutes is :

A

`4^(@)C`

B

`8^(@)C`

C

`1.36^(@)C`

D

`12^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
`JQ = i^(2) Rt , mSDelta(T)= i^(2)Rt`
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