A square loop `ABCD` of edge a moves to the right with a velocity `v` parallel to `AB` . There is a uniform magnetic field of magnitude `B` , direction into the paper, in the region between `PQ` and `RS` only. I, II and III are three ppositions of the loop.
(i) The emf induced in the loop has magnitude `B` a `v` in all three position
(iii) Induced emf is anticlockwise in position II
(iv) The induced emf is clockwise in position III
A. The emf induced in the loop has magnitude `Bav` in all three positions.
B. The induced emf is zero in position II
C. The induced emf is anticlockwise in positoin I
D. The induced emf is clockwise in position III
