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A uniform but time-varying magnetic fiel...

A uniform but time-varying magnetic field B(t) exists with in a circular region of radius a and is directed in to the plane of the paper as shown in the figure.
The magnitude of the induced electric field at the 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^2`

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
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  2. For current entering at A, the electric field E(r at a distance r form...

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