A conducting rod PQ of length
is moving with a uniform speed
in a uniform magnetic field
direction into the paper. A capacitor of capacity
is connected as shown in figure. Then

Text Solution
Verified by ExpertsThe correct answer is:
A
Motional emf across 

This is the potential to which the capacitor is charged.
As 

As the magnetic force on an electron in the conducting rod
is towards
, therefore,
is positively charged and
is negatively charged
ie,
and 
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