Question

The field strength of a bar magnet is:
(A) Same throughout the length of the magnet
(B) Greater at its centre
(C) Greatest at its poles
(D) Increases as the magnet ages​

Answer 1

Answer:

The correct answer is that The field strength of a bar magnet is greater at its poles As  when these magnets are arranged in a open chain, i.e. North pole and south pole lie in the same direction, a strong force is created whereas  when they are kept  at the middle the fores will be equal and would cancel each other. That's  why the bar magnet or even any magnet has a strong magnetic field strength in its poles.

Answer 2

The field strength of a bar magnet is greatest at its poles. (Option C)

• In any magnet, the north and south ends of it are referred to as the magnet's poles.
• Its strength or the level of attraction is at its maximum at these ends.
• The loops of the lines of the magnetic field pull any metal towards itself with the majority of the strength on the ends.
• This is not highest at the centre, doesn't increase with the age or remain the same throughout.