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PHYSICS

JAMB 2016 - Question 15

Physics 2016 JAMB Past Questions - Question 15: To proton a material from the influence of an external magnetic filed , the material should be kept in a

Choose the correct answers from the options given.

To proton a material from the influence of an external magnetic filed , the material should be kept in a

A: soft iron ring

B: loop of copper wire

C: triangular zinc ring

D: square steel ring

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Correct Answer

Explanation

To protect a material from the influence of an external magnetic field, the material should be kept in a non-magnetic enclosure or shield. This enclosure or shield is typically made of a material that has high magnetic permeability, such as mu-metal or certain alloys. The purpose of the enclosure is to redirect the magnetic field lines away from the protected material, effectively shielding it from the external magnetic field.