A student takes about one metre long insulated copper wire and winds it round and round closely on a large iron nail. He then connects the two ends of the wire to a battery. When a steel paper clip is brought near the iron nail, the iron nail attracts it due to which the steel clip sticks to the iron nail.
(a) Which effect of electric current is demonstrated by this experiment?
(b) Name one common appliance used in our houses which works on this effect of electric current.
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Answer:
(a) Which effect of electric current is demonstrated by this experiment
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The effect is electromagnetic induction.
Electric generator works on this effect.
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