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What is the difference between an induced emf and a back emf?
(i) i thought they were the same thing??? . . .. .
(i) i thought they were the same thing??? . . .. .
Thank you for clearing that up!!!!If an open coil is subjected to a variable magnetic field, at the ends of the coil a potential difference is induced which is called induced emf.
If a coil is connected to an emf source and switched on, the rising current will produced an variable magnetic field which in turn produces an emf. It is called back emf.