Recent content by Flupps

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    Engineering How Do You Calculate Instantaneous Voltage Across a Capacitor in an AC Circuit?

    Ah thanks! With the same problem with different numbers I had R = 350, C = 380nF, f = 3.91kHz, (Es)m = 29.86v Got an answer of -3.12v which was correct. It became much simpler now that I know the phase shift isn't used... just used formula (Vc)msin(2*pi*f*t-(pi/2)) after calculating the other...
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    Engineering How Do You Calculate Instantaneous Voltage Across a Capacitor in an AC Circuit?

    Isn't the capacitor voltage lagging the current by 90 deg? I'm not sure how to incorporate the phase shift though, and I've tried this question a few more times and still end up with an answer that's way off.
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    Engineering How Do You Calculate Instantaneous Voltage Across a Capacitor in an AC Circuit?

    Homework Statement For the circuit in question1above: R=(3.74x10^2) (Ω), C=(3.8700x10^-7) (F), f=(4.610x10^3) (Hz) and the peak amplitude of the voltage of the source (ES)=(6.185x10^1) (V). Calculate the instantaneous value of the voltage across the capacitor at t=(4.110x10^-5) (s) after the...