Question

   What is the effective length of a bar a magnet?

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Answer 1

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The length of a magnet is defined as the distance between one of the magnetic poles and the center of that magnet. The effective length of the magnet is the distance between the magnetic north pole and the magnetic south pole in case of a bar magnet. The effective length is twice the length of the magnet.

Answer 2

Answer:

The length of a magnet is defined as the distance between one of the magnetic poles and the center of that magnet. The effective length of the magnet is the distance between the magnetic north pole and the magnetic south pole in case of a bar magnet. The effective length is twice the length of the magnet.