Who proved magnetic effect of electric current and how??

1.	Who proved magnetic effect of electric current and how??
Answer» The magnetic effect of electric current was discovered by H.C. Oersted in 1820. He observed that flow of electric current through a conductor produce a magnetic field around it. The magnetic effect of current can be demonstrated by doing following experiment.H.C. OerstedOersted Experiment to Demonstrate the Magnetic Effect of Electric Current First of all make a simple electric circuit by joining a long straight wire with a battery and a plug. Now, take a magnetic compass needle and place the straight wire parallel and over the compass needle. Then switch on the circuit so that current flows through the wire from south to north directions. Now, you will found that the north pole of compass needle gets deflected towards the west.

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