The magnetic effect of current was discovered by

This question was previously asked in
BPSC AE Paper 4 (General Engineering Science) 25 March 2022 Official Paper
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  1. Maxwell
  2. Fleming
  3. Oersted
  4. Faraday

Answer (Detailed Solution Below)

Option 3 : Oersted
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Magnetic effect of current:

  • The magnetic effect of electric current was discovered by H.C. Oersted in 1820. 
  •  He observed that the flow of electric current through a conductor produces a magnetic field around it.

The magnetic effect of current was proved by an experiment which was as under:

F2 Madhuri Engineering 14.05.2022 D3

  1. Initially, the magnetic needle was put on the axis of the magnetic meridian. When a current flows through the circuit, the needle got deflected in the direction of the electric current.
  2. And when the direction of the electric current was reversed, the needle got deflected in the opposite direction.
  3. This proved that the magnetic effect was produced by the electric current and the electric field is a source of the magnetic field and vice-versa.
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