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Magnetic Field

The earth's f...

Question

The earth's field departs from its dipole shape substantially at large distance (greater than about $3000$ km). The responsible factor for this distortion is then?

A

Motion of ions in earth's ionosphere

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B

Motion of ions in earth's atmosphere

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C

Motion of ions in earth's lithosphere

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D

Motion of ions in the space

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Solution

The correct option is B Motion of ions in earth's ionosphere
Due to motion of ions in earth's ionosphere the earth's magnetic field gets modified.

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