A parallel plate capacitor made of circular plates each of radius 10.0 cm has a capacitance 200muF. The capacitor is connected to a 200V a.c. supply with an angular frequency of 200rads^-1. (a) What is the r.m.s. value of the conduction current? (b) Is the conduction current equal to displacement current? (c) Peak value of displacement current. (d) Determine the amplitude of magnetic field at a point 2.0 cm from the axis between the plates.
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