Question

hi how can a bar magnet has four no. of poles if it is cut lenghtwise into two parts
show with diagram ​

Answer 1

Answer:

When we cut along the length, pole strength of each new magnet is half the pole strength of original magnet , magnetic moment is also halved, as length remains the same.

Explanation:

If a bar magnet is broken into four pieces, each piece will behave as an individual magnet because the new poles are formed at the broken ends. ... Even a very small piece of a magnet is an individual magnet and has a north and a south pole