The circuit shown in Figure P 7.7-9 is at steady state before the switch opens at time t

Chapter 7, Problem P7.7-9

(choose chapter or problem)

The circuit shown in Figure P 7.7-9 is at steady state before the switch opens at time t = 0. The current i(t) is given by

(a) Determine the energy stored by each inductor before the switch opens.

(b) Determine the energy stored by each inductor 200 ms after the switch opens.

The series inductors can be replaced by an equivalent inductor.

(c) Determine the energy stored by the equivalent inductor before the switch opens.

(d) Determine the energy stored by the equivalent inductor 200 ms after the switch opens.

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