An 800-turn coil of effective area 0.05 m2 is kept perpendicular to a magnetic field 5 × 10-5 T. When the plane of the coil is rotated by 90° around any of its coplanar axis in 0.1 s, the emf induced in the coil will be:
A. 2 V
B. 0.2 V
C. 0.002 V
D. 0.02 V
Answer:D
An 800-turn coil of effective area 0.05 m2 is kept perpendicular to a magnetic field 5 × 10-5 T. When the plane of the coil is rotated by 90° around any of its coplanar axis in 0.1 s, the emf induced in the coil will be:
A. 2 V B. 0.2 V C. 0.002 V D. 0.02 V