First slide
Displacement current

A parallel plate capacitor of capacitance 20μF is being charged by a voltage source whose potential is changing at the rate of 3 V/s. The conduction current through the connecting wires, and the displacement current through the plates of the capacitor, would be, respectively


 HereC=20μF  Therateofchangeofpotential =3 V/s  ThechargeonthecapacitorQ=CV  dQdt=ID=CdVdt=20μF×3 V s=60μA  Displacementcurrentisequaltotheconductioncurrent

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