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A uniform conducting wire is used to mak...

A uniform conducting wire is used to make a ring and its two diameters AB and CD. The ring is placed in a uniform magnetic field B perpendicular to its plane. The resistance of the wire per unit length is `lambda Omega//m`.

(a) Find the current in BO and BC when the ring is moved with constant velocity v in its plane.
(b) Find current in BO and BC when the ring is kept stationary but the magnetic field is increased at a constant rate of `(dB)/(Dt) = alpha T//s`. Assume that magnetic field is confined inside the circular ring only. Take radius of the ring to be a.

Text Solution

Verified by Experts

The correct Answer is:
(a) Zero in both BO and BC
(b) Zero in BO and `(a alpha)/(2 lambda)` in BC
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