# The magnetic field of earth at the equator is approximately 4x10-5 T. The radius of earth is 6.4x106 m. Then the dipole moment of the earth will be nearly of the order of : Option 1) Option 2) Option 3) Option 4)

As we discussed in

If a<

-

Given

Dipole moment of the earth M=?

Option 1)

This solution is correct

Option 2)

This solution is incorrect

Option 3)

This solution is incorrect

Option 4)

This solution is incorrect

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