Which of the following shows that the earth behaves as a magnet?
A. Repulsion between like poles .
B. Attraction between unlike poles
C. Null points in the magnetic field of a bar magnet
D. No existence of isolated magnetic poles
Answer:C
Which of the following shows that the earth behaves as a magnet?
A. Repulsion between like poles . B. Attraction between unlike poles C. Null points in the magnetic field of a bar magnet D. No existence of isolated magnetic poles