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1. |
An a.c. generator consists of a coil of 50 turns and an area 2.5 m2 rotating at an angular speed of 60 rad s-1 in a uniform magnetic field of 0.3 T between two fixed pole pieces. What is the flux through the coil, when the current is zero? |
A. | Maximum |
B. | Minimum |
C. | Zero |
D. | Independent of current |
Answer» B. | |