what are the four experimental observations of electromagnetic induction
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High School
Definition:
Electromagnetic induction is the production of an electromotive force across a conductor when it is exposed to a varying magnetic field.
Experiment:
Two different coils of copper wire having large number of turns (say 50 and 100 turns respectively) are taken. They are now inserted over a non-conducting cylindrical roll, as shown in figure below.
The coil-1, having larger number of turns, is connected in series with a battery and a plug key. Also, the other coil-2 is connected with a galvanometer as shown.
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