For t 0 the voltage across a 10-mH inductor is vL(t) 20 e 400t V.

For t  0 the voltage across a 10-mH inductor is vL(t) ¼ 20 e

400t V. Plot iL(t) versus time when iL(0) ¼ 5 A. [Hint: In OrCAD use the VEXP source, set TD1 to zero and TD2 to 10 s, and set the other parameters appropriately. Use the Property Editor to set the inductor’s initial condition to

5 A. Then plot the output using the transient function.

Place a tiny, 1-nV resistor in series with the inductor to avoid an ‘‘inductor loop’’.]