1 Magnetic Effects of Current
A metal disc of radius 100 cm is rotated at a constant angular speed of 60 rads -1 in a plane at right angles to an external field of magnetic induction 0.05 Wbm-2. The end' induced between the centre and a point on the rim will be
1) 3 V 2) 1.5 V 3) 6V 4) 9 V
SOLUTION
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