The loop shown moves with a velocity v in a uniform magnetic field of magnitude B, directed into the paper. The potential difference between P and Q is e.
(i) 
(ii) 
(iii) P is positive with respect to Q
(iv) Q is positive with respect to P
Text Solution
Verified by ExpertsThe correct answer is:
C
As, the potential due to a straight rod of length L in magnetic field B,
So, for 
Hence, current is from P to Q, i.e. P is at positive potential w.r.t. Q.
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