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CBSE Class 12 · 2011 · All India · Magnetic Properties of MatterVery Short Answer

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Where on the surface of Earth is the angle of dip 90?

Answer: At the magnetic poles (the north and south magnetic poles of the Earth).

Solution

The angle of dip is where Earth's total magnetic field is directed vertically, i.e. the horizontal component .
This happens at the Earth's magnetic poles, where a freely suspended needle sets itself vertical.

CBSE Class 12 Board · 2011 · All India · Subjective

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