For the network in Fig. 1:a. Determine the mathematical expressions for the current iL and...

For the network in Fig. 1:

a. Determine the mathematical expressions for the current iL and the voltage υL when the switch is closed.

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b. Repeat part (a) if the switch is opened after a period of five time constants has passed.

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c. Sketch the waveforms of parts (a) and (b) on the same set of axes.

FIG. 1