Earth's magnetic field may be supposed to be due to a small bar magnet located at the center of the earth. If the magnetic field at a point on the magnetic equator is 
. Magnet moment of bar magnet is
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
B
When a magnet is freely suspended in earth's magnetic field, it's north pole points north, so the magnetic field of the earth may be suppose to be due to a magnetic dipole with it's south pole towards north and as equatorial point is on the broad side on position of the dipole.
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