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Consider a circular loop of wire of radius r lying in the xy plane,
as shown in figure below. The loop contains a resistor R and a
capacitor C and is placed in a uniform magnetic field which
dB
points into the page and decreases at a rate d = -a, with
dt
a)0.
R
B
ab
HH
C
(a) Is the induced current clockwise or anticlockwise?
(b) Find the maximum amount of charge on the capacitor.
(c) Which plate, a, or b, has a higher potential?
X
X
X
X
X

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