Question

what is effective length of the magnet​

Answer 1

Answer:

Length of magnet is defined as the distance between one of the magnetic poles and the centre of the magnet (ON = OS = L). Effective length is defined as the distance between the magnetic north pole and the magnetic south pole of a bar magnet (NS = 2L). Thus, the effective length is twice the length of magnet.

Answer 2

Answer:

Length of magnet is defined as the distance between one of the magnetic poles and the centre of the magnet ON=OS=L .

Effective length is defined as the distance between the magnetic north pole and the magnetic south pole of a bar magnet NS = 2L thus ,the effective length is twice the length of the magnet.

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