JEE PHYSICS MCQ: MAGNETISM AND MATTER

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The total intensity of earth's magnetic field at the poles is 7 units. Its value at the equator is

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Correct option: C

7 units

Option C (7 units) is correct because at the equator, the magnetic field is horizontal, and the total intensity is equal to the horizontal component, which is equal to the total field at the poles (vertical component).

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