Question

(i) Mark the polarities of the parts A and B formed when a horse-shoe magnet is cut into two parts as shown :
(ii) What happens to the magnetic strength of parts as compared to the original magnet ?

Answer 1

Cutting a horse-shoe magnet

Explanation:

When we cut a horseshoe magnet, each component becomes a magnet with the same properties as the original magnet. The smaller pieces will realign with the same polarity as the original magnet. Each piece will have one end of the piece as north pole and the other end as the south pole. But the shape of the magnet could differ from the initial horseshoe shape depending on where you make the cut.

Hammering or heating can destroy the magnetic power of the original bar magnet, but simply breaking them into pieces will not destroy its magnetic property. It might slightly weaken but the pieces will still be magnetic.