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Questions  

A magnet is placed with its north pole towards geomagnetic north pole. In it's map of magnetic field the null points will be

a
On it's equatorial line
b
On it's axial line
c
On a line making 450 with axial line
d
None

detailed solution

Correct option is A

On equatorial line magnetic field due to bar magnet is opposite to it's dipole moment

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