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Question

In the magnetic meridian of a certain place the horizontal component of earth's magnetic field is 0.25G and dip angle is 60o. The magnetic field of the earth at this location is?

A
0.50G
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B
0.52G
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C
0.54G
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D
0.56G
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Solution

The correct option is A 0.50G
Here, HE=0.25G and cosδ=HEBE

The magnetic field of earth at the given location is

BE=HEcos60o=0.251/2=0.50G.

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