Question

what is the cause of Earth's magnetism.?

Answer 1

Explanation:

The magnetic field is generated by electric currents due to the motion of convection currents of molten iron in the Earth's outer core; these convection currents are caused by heat escaping from the core, a natural process called geodynamo.

Answer 2

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What is the cause of Earth's magnetism.?

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→ The exact cause of earth's magnetic field is not yet known. However, some important causes in this respect are:

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→ There is a metallic molten charged fluid in the core of the earth. The radius of this fluid is about 3500 km. Due to the motion of this fluid inside the earth, large circulating currents are produced. These currents magnetise the earth.

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→ In the outer layers of earth's atmosphere, gases are in the ionised state. Due to rotation of earth, these ions also move and hence they constitute the current. These currents may be the reason for magnetism of earth.

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→ Every substance is made up of protons and electrons. When the earth rotates , every substance on the earth or inside the earth will rotate. Hence there is motion of protons and electrons and due to this, Currents are produced. This may be the reason of
magnetism of earth.








Hope it helped u.

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