Who discovered formation of magnetic field due to electric current and how?
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In 1820 the theory of the magnetic effect of electric current was discovered by H.C Oersted. This concept actually means that the flow of an electric current through a conductor produces a magnetic field around it.
He demonstrated this observation with the SNOW Rule
As per this experiment if we make an electric circuit by joining a straight wire connected to a battery and a plug and then place a magnetic compass needle parallel to an under the wire. Now if we switch the circuit on so that the current from the wire flows from South to North direction, we will observe that the magnetic compass needle gets averted towards the west. Now if we change the direction of the current from North to South direction the magnetic compass gets averted towards the East.
Thus, according to this SNOW Rule, When the current flows through a conductor from South to North then the magnetic needle placed beneath it, gets averted to the west, thereby proving that flow of electric current produces a magnetic field. This is because the compass needles work as a small bar magnet, so when this magnetic needle is brought near another magnetic property surrounding then the like poles will repel, thereby the needle gets deflected.
hope it helped;-)
He demonstrated this observation with the SNOW Rule
As per this experiment if we make an electric circuit by joining a straight wire connected to a battery and a plug and then place a magnetic compass needle parallel to an under the wire. Now if we switch the circuit on so that the current from the wire flows from South to North direction, we will observe that the magnetic compass needle gets averted towards the west. Now if we change the direction of the current from North to South direction the magnetic compass gets averted towards the East.
Thus, according to this SNOW Rule, When the current flows through a conductor from South to North then the magnetic needle placed beneath it, gets averted to the west, thereby proving that flow of electric current produces a magnetic field. This is because the compass needles work as a small bar magnet, so when this magnetic needle is brought near another magnetic property surrounding then the like poles will repel, thereby the needle gets deflected.
hope it helped;-)
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