What is oersted experiment ? what is effect of a bar magnet on a compass needle
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Explanation:By setting up a compass through a wire carrying an electric current, Oersted showed that moving electrons can create a magnetic field. The magnetic field created by the current goes in circles around the wire. Effect of Current on a Compass Needle - definition
Compass needle is a magnetic needle , so when placed still will align itself in north-south direction, if we bring a bar magnet near the compass the needle will deflect based on the property that like poles of two magnets repel each other.
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