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Sahay Sir > Question Answers > MTG NEET Physics > Part 2 > Chapter 8 - Electromagnetic Waves > A circular ring of radius r is placed in a homogeneous magnetic field perpendicular to the plane of the ring. The field B changes with time according to the equation B=kt where K is constant and r is the time. The electric field in the ring is:

A circular ring of radius r is placed in a homogeneous magnetic field perpendicular to the plane of the ring. The field B changes with time according to the equation B=kt where K is constant and r is the time. The electric field in the ring is:

The average electric field of electromagnetic waves in certain region of free space is 9 x 10^(–4) NC^(–1). Then the average magnetic field in the same region is of the order of