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The magnetic field of earth at the equat...

The magnetic field of earth at the equator is approximately `4 x× 10^(-5) T. The radius of earth is `6.4 x× 10^(6)` m. Then the dipole moment of the earth will be nearly of the order of:

A

`10^(23)A m^(2)`

B

`10^(20) A m^(2)`

C

`10^(16) A m^(2)`

D

`10^(10) A m^(2)`

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