EE 201 Circuits G. Tuttle

RC transients practice problems
Refresh the page to get a new problem.

Read the RC-transient class notes.


For the circuit shown,

  • R = 15 kΩ
  • C = 33 μF

For the RC circuit, the switch has been open for a long time and closes at t = 0. Prior to the switch closing, the capacitor was charged to a voltage of Vi = 12 V.

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

Calculate the time when the capacitor voltage will be equal to 1.5 V and calculate the capacitor current at that time.

Answer