Two LR circuits are magnetically coupled as shown. The self-inductances, resistances, mutual inductance and battery voltages are given in the figure. After both switches are closed simultaneously, find the total work done by the batteries against induced emf until steady state, in mJ.

Physics · AC Circuits

JEE Advanced 2020

Two LR circuits are magnetically coupled as shown. The self-inductances, resistances, mutual inductance and battery voltages are given in the figure. After both switches are closed simultaneously, find the total work done by the batteries against induced emf until steady state, in mJ.

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