The time taken by an electric heater to ...

The time taken by an electric heater to rise the temperature of 100cc of water through `10^(@)C` is 7s. If there is no loss in energy. Power of that motor is (J=4.2J/cal)

420W

42W

4.2W

0.6KW

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The correct Answer is:

`P=(W)/(t)=(JmSDeltatheta)/(t)`

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NARAYNA-KINETIC THEORY OF GASES-LEVEL-III(C.W)

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