Physics-
General
Easy
Question
A uniform but time varying magnetic field is present in a circular region of radius R The magnetic field is perpendicular and into the plane of the loop and the magnitude of the field is increasing at a constant rate 
.There is a straight conducting rod of length 2R placed as shown in figure .The magnitude of induced emf across the rod is
The correct answer is:
Considering a square loop as shown, emf across the loops 
magnitude of emf across one side 
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