Question

Earth's magnetic field A) results from a huge bar magnet within the planet B) is believed...

Earth's magnetic field

A) results from a huge bar magnet within the planet

B) is believed to arise from current within the planet's core

C) is always parallel to the planet's surface.

D) is always in the same direction

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Answer #1

Earth's magnitic field is arise because of metal present in the earth core in molten state and as the earth rotate this molten metal also rotate along with it which results in the movement of free charge particle.

As a result minor current will produce which produce its own magnetic field.

So option B is correct

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