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When the N-pole of a bar magnet points t...

When the `N`-pole of a bar magnet points towards the south and S-pole towards the north, the null points are at the

A

magnetic axis

B

magnetic centre

C

perpendicular divider of magnetic axis

D

N and S poles

Text Solution

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The correct Answer is:
A
If a north pole a magnet point south, the fields of the magnet and the erth will point in opposite direction along the axis of the magent, so two neutral points are obtained which hare equidistant from the magnet on its axis
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