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Questions  

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

a
1.6 ×10−4T
b
1.6 ×10−6T
c
1.6 ×10−7T
d
1.6 ×10−5T

detailed solution

Correct option is C

B=μ04πMr31+3cos2θB=10−7×1.211+3cos2600B=1.6×10−7T

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