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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An element with emfε and interval resistance r is connected across an external resistance R. The maximum power in external circuit is 9W. The current flowing through the circuit in these conditions is 3A. Then which of the following is // are correct ?

An element with emfε and interval resistance r is connected across an external resistance R. The maximum power in external circuit is 9W. The current flowing through the circuit in these conditions is 3A. Then which of the following is // are correct ?

A wire of length L and three identical cells of negligible internal resistance are connected in series. Due to the current In the circuit shown in the figure: the switch S is in position 1 for a long time. Now the switch is thrown to position 2. Find the total heat developed in the circuit till the steady state is reached again.