MCQ
Earth's magnetic field always has a horizontal component except at or Horizontal component of earth's magnetic field remains zero at
  • A
    Equator
  • Magnetic poles
  • C
    A latitude of $60^o$
  • D
    An altitude of $60^o$

Answer

Correct option: B.
Magnetic poles
b
(b)At magnetic poles, the angle of dip is $90^o$. Hence the horizontal component ${B_H} = B\cos \theta = 0.$

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