The circuit shown in Figure SP 8-4 is at steady state before the switch closes at time t

Chapter 8, Problem SP8-4

(choose chapter or problem)

The circuit shown in Figure SP 8-4 is at steady state before the switch closes at time t = 0. The input to the circuit is the current of the current source, 4 mA. The output of this circuit is the current in the inductor, i(t). Use PSpice to plot the output i(t) as a function of t. Use the plot to obtain an analytic representation of i(t) for t > 0.

Hint: We expect i(t) = A + \(Be^{-t/\tau}\) for t > 0, where A, B, and \(\tau\) are constants to be determined.

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