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Magnetism — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsMagnetism1 Mark
MCQ
The magnetic field of earth is due to
  • ✓
    Motion and distribution of some material in and outside the earth
  • B
    Interaction of cosmic rays with the current of earth
  • C
    A magnetic dipole buried at the centre of the earth
  • D
    Induction effect of the sun
✓

Answer

Correct option: A.
Motion and distribution of some material in and outside the earth
(a)

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