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1. |
In a region of uniform magnetic induction \[B={{10}^{-2}}\,tesla\], a circular coil of radius 30 cm and resistance p2 ohm is rotated about an axis which is perpendicular to the direction of B and which forms a diameter of the coil. If the coil rotates at 200 rpm the amplitude of the alternating current induced in the coil is [CBSE PMT 1990] |
A. | 4p2 mA |
B. | 30 mA |
C. | \[{{e}^{2}}c/2\pi h\] |
D. | 200 mA |
Answer» D. 200 mA | |