To protect a material from the influnce of an external magnetic field, the materials should…

Physics JAMB 2004

To protect a material from the influnce of an external magnetic field, the materials should be kept

  • square steel ring
  • triangular zinc ring
  • soft iron ring checkmark
  • loop of copper wire

The correct answer is: C

Explanation

In order to protect a material from the influence of an external magnetic field, the material is placed in a soft iron ring, usually referred to as magnetic screening.
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