RL transient practice problems
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Read the RL-transient class notes.

For the circuit shown,

• R = 390 Ω
• L = 4.7 mH

For the RL circuit, the source has been at an initial current value of I_i = 2.1 mA for a long time.
At t = 0, the source current abruptly drops to I_f = 0 A.

Determine the expression for the inductor current as a function of time, for t > 0.

Calculate the inductor current and voltage at t = 36.15 μs.

Answer