Answer:
In Fig. 4(EP).23,
magnetic field is constant and
is out of paper. When the sliding rod AB moves with a velocity in the direction shown,
induced current in AB is from A to B. As switch S is closed at time t = 0, the
capacitor gets charged. If Q (t) is charge on the capacitor, then
or
????.(i)
where
A is an arbitrary constant.
At
t = 0, = 0
Put
in (i),
Differentiating
w.r.t. t, we get
This
is the current in the sliding rod.
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