Physics-
General
Easy
Question
A metal of radius 100 cm is rotated at a constant angular speed of 60 
in a plane at right angles to an external field of magnetic induction 0.05 
. The emf induced between between the centre and a point on the rim will be
- 3 V
- 1.5 V
- 6 V
- 9 V
The correct answer is: 1.5 V
The emf developed between the centre and the rim is
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