MHT CET Physics question

A magnet is suspended lengthwise from a spring while it oscillates, the magnet moves in and out of the coil C connected to a galvanometer G. Then as the magnet oscillates.

(A)G shows no deflection
(B)G shows deflection on one side
(C)deflection of G to the left and right has constant amplitude
(D)defection of G to the left and right has decreasing amplitudeCorrect

Answer: (D)

Solution

The moving magnet induces an alternating emf, so G deflects to the left and right (not zero, not one-sided); by Lenz's law the induced

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-081817