Question

Magnetic effect of electric current was discoverd by . . ...
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Answer 1

Answer:

Hans Christian Ørsted often rendered Oersted in English; 14 August 1777 – 9 March 1851) was a Danish physicist and chemist who discovered that electric currents create magnetic fields, which was the first connection found between electricity and magnetism.

• The magnetic effect of electric current is known as electromagnetic effect. It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.

• The phenomenon of electromagnetic induction is the production of induced EMF and thereby current in a coil, due to the varying magnetic field with time. If a coil is placed near a current-carrying conductor, the magnetic field changes due to a change in I or due to the relative motion between the coil and conductor.

Answer 2

Hans Christian Oersted discovered the magnetic influence of the current in the year of 1820 and noticed that a wire carrying a current could deflect a magnetic needle.

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