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A parallel plate capacitor made of circular plates each of radius R = 6.0 cm has a capacitance C = 100 pF. The capacitor is connected to a 230 V ac supply with a (angular) frequency of 300 rad s^(-1).Is the conduction current equal to the displacement current ?

Answer»

SOLUTION :Yes, when current in the circuit changes continuously PERIODICALLY with time, we have `i_(C )=i_(d)`. (Here it should be noted that conduction current `i_(c )` flows in the external circuit only upto the plate of a capacitor whereas displacement current `i_(d)` flows in the REGION between the plates of a capacitor).


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