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JAMB Physics 2005 Question 20

Question 20

Magnetism

The north pole of a magnet can never be separated from the south pole because of a property known as

  1. A.magnetic dipole.
  2. B.magnetic octopole.
  3. C.magnetic monopole.
  4. D.magnetic quadrupole.
Show the answer and explanation

Answer: A (magnetic dipole.)

Explanation

Every magnet is a dipole: cutting it always gives smaller magnets, each with both a north and a south pole.