what will happen to a compass needle when the compass is placed below a wire needle parallel to it and a current is made to flow through the wire ? give reason
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the compass needle will show some deflection because current passing wire has always magnetic field arond it
megaswarup77:
thanks a lot
No problem
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The compass needle shows deflection. This happens because when the current is passed through the wire, a magnetic field is produced around the conductor due to which the compass needle gets deflected.
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