Magnetism Question 52
Question: Earth’s magnetic field always has a horizontal component except at or Horizontal component of earth’s magnetic field remains zero at
[CPMT 1971, 81, 83]
Options:
A) Equator
B) Magnetic poles
C) A latitude of $60^\circ$
D) An altitude of $60^\circ$
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Answer:
Correct Answer: B
Solution:
At magnetic poles, the angle of dip is 90o. Hence the horizontal ooooooooooooooooooocomponent $ B _{H}=B\cos \theta =0. $