Q. The magnetic field of earth is due to
A) 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
Explanation
The correct answer is Option A: Motion and distribution of some material in and outside the earth.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.