MHT CET 2023 Physics question

Not in JEE Advanced syllabus

A thin rod of length L has magnetic moment M when magnetised. If rod is bent in a semicircular arc what is magnetic moment in new shape?

(A)
(B)
(C)
(D)Correct

Answer: (D)

Solution

For a bar magnet, where is the pole strength and the distance between the poles. On bending into a semicircle, the pole strength is unchanged and the length of the arc remains , so the radius is . The poles are now at the two ends of the

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-094547