Question

A bar magnet for magnetic dipole moment is cut into two halve by a horizontal plane. Which of the following statements are correct?

• A. only pole strength becomes the half
• B. only magnetic dipole moment gets the half
• C. both dipole moment and pole strength becomes the half
• D. Dipole moment remains unaltered.

Answer 1

The correct option is C both dipole moment and pole strength becomes the half

When abar magnet is cut into two halves by horizontal plane then pole strength gets halved.
Since, $M=2ml$
Therefore, dipole moment also gets halved.