Questions
The magnetic field due to a small dipole of a given magnetic dipole moment varies as inverse of the
a
Square of the distance
b
Cube of the distance
c
Fourth power of distance
d
None of these
detailed solution
Correct option is B
1) Magnetic field induction at a point on the axial line due to short bar magnet is Ba=μ04π2Md3 , Baα1d3 2) Magnetic field induction at a point on the equatorial line due to short bar magnet is Be=μ04πMd3 Beα1d3Hence Key (1)(3) and (4) are not correctTalk to our academic expert!
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