suggest one way of discriminating a wire carrying current from awire carrying no current
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Answer:
Place a magnetic needle under it.
Explanation:
According to "Ampere's Swimming" if a person is imagined to swimming along a current carrying wire in the direction of electric current with his face kept towards the magnetic needle, the North pole of the needle will be deflected towards his left hand.
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Suggest one way of discriminating a wire carrying current from a wire not Carring current?
A current carrying wire will produce a deflection in needle as it poses a magnetic field.
Whereas, no current carrying wire will not produce any deflection in needle as it do not poses magnetic field.
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