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  Physics (NTSE/Olympiad)  

2. Magnetic Effect of Current

EMI (Electromagnetic Induction)

EMI (Electromagnetic Induction)
Introduction: Whenever magnetic flux linked with a closed loop changes, an electric current is produced in the loop (a galvanometer connected with closed loop, shows a deflection). The current lasts only so long as the flux is changing.
This phenomenon is called electromagnetic induction. The electric current produced, is called induced current. The e.m.f. which produces this current, is called induced e.m.f.

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