RC transients practice problems
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Read the RC-transient class notes.

For the circuit shown,

• R = 120 Ω
• C = 470 nF

For the RC circuit, the source voltage has been at an initial voltage of V_i = 22 V for a long time. At t = 0, the source voltage abruptly drops to V_f = -5 V.

Determine the expression for the capacitor voltage as a function of time, for t > 0.

Calculate the capacitor voltage and capacitor current at t = 0.1692 ms.

Answer