Post on 01-Jan-2016
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An electric current is induced when an electric wire is moved up and down between the opposite pole of a magnet
No current is produce when the wire a. is held stationaryb. when the magnet is removed.
The size of an induced current depends on i. the speed of moving wireii. the number of coils iii.the strength of the magnet
What is dynamo effect?
When a wire is moved up and down between the opposite poles of a magnet, an electric current is produced.