Magnetism and Matter · Class 12 · CBSE · Science Physics
A bar magnet of magnetic moment M is cut into two equal pieces transverse to its length. The magnetic moment of each new piece will be:
Practice question from Magnetism and Matter (Class 12 · CBSE · Science Physics), with the correct answer and a step-by-step solution.
medium · MCQ · Q-C6DB53
A bar magnet of magnetic moment is cut into two equal pieces transverse to its length. The magnetic moment of each new piece will be:
- A.M
- B.M/2Correct answer
- C.2M
- D.M/4
Solution
When a bar magnet is cut transverse to its length, the pole strength remains the same, but its length becomes halved. Since magnetic moment , the new magnetic moment becomes .
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