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Network TheoryTransient Analysis

For a DC step V applied to an initially uncharged series RC circuit, the capacitor voltage is?

  • AV e^(-t/RC)
  • BV[1-e^(-t/RC)]
  • CV(1+t/RC)
  • DV sin(t/RC)
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Correct Answer: B. V[1-e^(-t/RC)]
Explanation: The charging response starts at zero and approaches V exponentially: vC(t)=V[1-e^(-t/RC)].
Reference: Standard network theory: RC step response
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