Q2 of 330 Page 66

If the current passing through a conductor is doubled, what will be the change in heat produced?

Heat produced, H = I2Rt

So, If the current passing through a conductor is doubled then heat produced becomes four times.


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Two exactly similar electric lamps are arranged (i) in parallel, and (ii) in series. If the parallel and series combination of lamps are connected to 220 V supply line one by one, what will be the ratio of electric power consumed by them?

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