Chapter 24.1, Problem 13SSC

To determine

The location of strongest field on bar magnet.

Answer to Problem 13SSC

The strongest field on bar magnet is at poles.

Explanation of Solution

Introduction:

Bar magnet:

It is a permanent magnet having rectangular or cylindrical shape. It is made up of ferromagnetic material like iron, steel, nickel, etc. It is having two pole, a north and a south pole.

This magnet aligns its north pole with the north pole of earth’s northern pole when suspended freely.

On breaking the bar magnet both pieces generate north and south pole.

A bar magnet is shown below:

  

The magnetic field lines never intersect each other.

The magnetic field in bar magnet originates from north pole and terminates in south pole.

The field lines are denser at the poles and rarer away from the poles.

So, the magnetic field is strongest at the poles.