Interview Question


Given a parallel plate capacitor and one of the plates is

  oscillating, find the current equation for the cap.

Interview Answer

1 Answer


You have to start with Q = CV and then take the derivative to get the current equation. Don't forget the multiplication rule (I did)! For C I just assumed it was a simple sine wave function and that it wasn't degrading over time to make it easier.

Interview Candidate on Dec 3, 2012

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