Physics-
General
Easy
Question
A uniform but time varying magnetic field B (t) exists in a circular region of radius a 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.
- is zero
- decreases as 1/r
- increases as r
- decreases as 1/r
The correct answer is: decreases as 1/r
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