Write the mathematical expression for the current ilnbspand

Question

Verify the results of give problem using the VPULSE function and the appropriate initial current.

Problem

The switch of given figure has been open for a long time. It is then closed at t = 0 s.

a. Write the mathematical expression for the current i_L and the voltage v_L after the switch is closed.

b. Sketch the waveform of i_L and v_L from initial value to the steady-state level.