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

For the circuit shown,

• R = 150 Ω
• C = 4.7 nF

For the RC circuit, the current source has been at an initial value of I_i = 0.17 A for a long time. At t = 0, the source current abruptly drops to I_f = -50 mA.

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

Answer