The loop shown moves with a velocity `v` in a uniform magnetic field of magnitude `B`, directed into the paper. The potential differene between point `P` and `Q` is e. Then

Options

A. `e=(1)/(2)` BLv, Q is positive with respect to P
B. `e=(BLv)/(2)`, P is positive with respect to Q
C. e=0
D. e=BLv, Q is positive with respect to P

Answer

b