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The earth’s magnetic field lines resembl...

The earth’s magnetic field lines resemble that of a dipole at the centre of the earth. If the magnetic moment of this dipole is close to `8 x× 10^(22) Am^(2)`, the value of earth’s magnetic field near the equator is close to (radius of the earth = `6.4 × 10^(6) m)`

A

0.6 Gauss

B

1.2 Gauss

C

1.8 Gauss

D

0.32 Gauss

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