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The magnetic field of earth due to

Option: 1

Motion and distribution of some material in and outside the earth


Option: 2

Interaction of cosmic rays with the current of earth


Option: 3

A magnetic dipole buried at the centre of the earth


Option: 4

Induction effect of the sun


Answers (1)

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As we learn

Earth's Magnetism -

The branch of Physics which deals with the study of Earth's magnetic field called Terrestrial magnetism.

- wherein

It is also known as geomagnetism.

 

 Theory of earth's magnetism

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