Current Electricity

Question: An electric heater kept in vacuum is heated continuously by passing electric current. Its temperature

1) Will go on rising with time

2) Will stop after sometime as it will loose heat to the surroundings by conduction

3) Will rise for sometime and there after will start falling

4) Will become constant after sometime because of loss of heat due to radiation

Solution:

Explanation: No Explanation

Heating Effect of Current Electric Power

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