First slide
Magnetism
Question

The magnitude of magnetic field due to a dipole of magnetic moment 1.2 Am2 at a point 1 m away from it in a direction making an angle of 600 with the dipole axis is  

Moderate
Solution

The magnitude of the magnetic field at any point is
 B=μ04π.Mr31+3cos2θ
Given :  M=1.2Am2;r=1m;θ=600
 B=1071.211+3cos260
B=1.6×107T . 

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