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JAMB Physics 1987 Question 44

Question 44

Magnetism

The direction of the magnetic field at a point in the vicinity of a bar magnet is

  1. A.always towards the north pole of the magnet
  2. B.always away from the south pole of the magnet
  3. C.along the line joining the point to the neutral point
  4. D.in the direction the north pole of a compass needle would point.
Show the answer and explanation

Answer: D (in the direction the north pole of a compass needle would point.)

Explanation

The direction of a magnetic field at a point is defined as the direction in which a compass needle's north pole points there.