Raghu was making a closed electric circuit with the help of a cell, connecting wires and a key. There was a magnetic needle near the circuit. He observed that the magnetic needle deflected, when the circuit was complete. Why?
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the magnet deflected when the curcuit was complete coz whn it completes it creates a magnetic field around it .
abd so on as we all know , magnet deflects when another magnet come close or beside it
so only the magnetic needles deflects.
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