No currents flow in the circuit before the switch is closed. Consider all circuit elements to be ideal.
(a) At the instant the switch is closed, what are the values of the currents I1 and I2, the potential differences across the resistors, the power supplied by the battery, and the induced emf in the inductor?
(b) After the switch has been closed for a long time, what are the values of the currents I1 and I2, the potential differences across the resistors, the power supplied by the battery, and the induced emf in the inductor?

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3.0 k2 45 V