Question

A magnet is placed in earth's magnetic field with south pole of the magnet pointing north. At the neutral point

• A. The earth's magnetic field is zero
• B. The fields of the magnet and the earth are equal and in opposite direction
• C. The magnet's magnetic field is zero
• D. The net magnetic field is zero

Answer 1

Answer: (B), (D)

The correct options are
B The fields of the magnet and the earth are equal and in opposite direction
D The net magnetic field is zero

When a magnet is placed in earth's magnetic field which also act as magnet then at neutral point as name suggests, by definition, neutral points has zero magnetic field and the point has both effect of magnet and earth equal and opposite.