# Joint Entrance Examination/2000 Screening/Q002 Uniform time varying magnetic field and induced electric field

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# Original Question by Dharav talk

Here's the question...
 A uniform but time-varying magnetic field B(t) exists in a circular region of radius a and is directed into the plane of the paper as shown. The magnitude of the induced electric field at point P at a distance r from the centre of the circular region (A) is zero (B) decreases as 1/r (C) increases as r (D) decreases as 1/r^2Posted by Dharav talk 09:07, 17 August 2009 (UTC)

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