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A parallel plate capacitor (Fig. 8.7) ma...

A parallel plate capacitor (Fig. 8.7) 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)` .
(a) What is the rms value of the conduction current?
(b) Is the conduction current equal to the displacement current?
(c) Determine the amplitude of B at a point 3.0 cm from the axis between the plates.

A

`1.63 xx 10^-11 T`

B

`6.31 xx 10^-11 T`

C

`3.61 xx 10^-11 T`

D

`6.13 xx 10^-10 T`.

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