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The magnitude of magnetic field due to a dipole of magnetic moment ${1.2 Am}^{2}$ at a point 1 m away from it in a direction making an angle of $60^{0}$ with the dipole axis is

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1.6×10-7 T

3.2×10-7 T

1.6×10-6 T

3.2×10-6 T

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detailed solution

Correct option is A

The magnitude of the magnetic field at any point is B=μ04π.Mr31+3cos2θGiven : M=1.2 Am2;r=1 m ; θ=600 ⇒B=10−71.211+3cos260⇒B=1.6×10−7 T .

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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

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Ready to Test Your Skills?

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The magnitude of magnetic field due to a dipole of magnetic moment ${1.2 Am}^{2}$ at a point 1 m away from it in a direction making an angle of $60^{0}$ with the dipole axis is