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A parallel plate capacitor, circular in shape, is connected to a ℰ = 9.6 V battery and a R = 2100 Ω resistor in series as shown in the figure. The radius of each of the circular plate is a = 0.95 m and they are separated by a gap of d = 0.16 m.
a) What is the current, in amperes, from the battery when the switch is closed at t=0?
b) What is the magnetic field, in T, at a distance of r= 1.2m from the axis of the capacitor when the switch is closed?
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