The magnetic field due to the Earth is closel | vedclass

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(A) The Earth's magnetic field is often modeled as a magnetic dipole located at the center of the Earth. However,in terms of the physical representati

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$A$ large magnet of length equal to the diameter of the Earth

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(A) The Earth's magnetic field is often modeled as a magnetic dipole located at the center of the Earth. However,in terms of the physical representation of the field lines and the magnetic moment,it is equivalent to a large bar magnet placed at the center of the Earth with a length equal to the diameter of the Earth. Therefore,option $A$ is the most accurate description of the equivalent magnet model.

The magnetic field due to the Earth is closely equivalent to that due to:

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