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Earth's Magnetism

Horizontal co...

Question

Horizontal component of earth's field at a height of $1 m$ from the surface of earth is $H$ . Its value at a height of $10 m$ from surface earth is

A

H / 10

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B

H / 9

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C

H / 100

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D

H

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Solution

The correct option is A $H$
The value of Horizontal component of earth magnetic field $H$ is fairly uniform over small distances.

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