Multiple choice

When current is switched on through a wire, why does a magnetic compass needle kept nearby get deflected?

  1. Because of the movement of electric current

  2. Because of the electric field created around the wire

  3. Because of the magnetic field around the wire

  4. Because of the heating effect of the electric current

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When electric current passes through a conducting wire, a magnetic field is created around the wire. The magnetic field causes deflection in the magnetic compass needle.

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