What will be the change in the length of each small bar magnet when a bigger bar magnet is cut into 4 equal parts parallel to the equatorial line ?

Options

A. One-fourth of the initial length
B. Half of the initial length
C. No change in its length
D. One-third of the initial length

Answer

A

Explanation

If the bar magnet is cut into four equal parts per pendicular to the axial line, the length of each small magnet becomes / th of the initial length.
Hence, the correct option is (a).