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1. |
When a wire loop is rotated in a magnetic field, the direction of induced e.m.f. changes once in each [MP PMT 1991, 04] |
A. | \[\frac{1}{4}\] revolution |
B. | \[\frac{1}{2}\] revolution |
C. | 1 revolution |
D. | 2 revolution |
Answer» C. 1 revolution | |