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 [IIT-JEE (Screening) 2000]

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                                              [IIT-JEE (Screening) 2000]

TuteeHUB · Accepted Answer

Increases as r

TuteeHUB · Answer

Is zero

TuteeHUB · Answer

Decreases as $$\frac{1}{r}$$

TuteeHUB · Answer

Decreases as $$\frac{1}{{{r}^{2}}}$$

1.	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 [IIT-JEE (Screening) 2000]
A.	Is zero
B.	Decreases as \[\frac{1}{r}\]
C.	Increases as r
D.	Decreases as \[\frac{1}{{{r}^{2}}}\]
Answer» C. Increases as r

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 [IIT-JEE (Screening) 2000]

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