1. Apr 26, 2009 #1

   jayjay112

   

   What is the difference between an induced emf and a back emf?
   
   (i) i thought they were the same thing??? . . .. .

    

   jayjay112, Apr 26, 2009
2. 
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3. Apr 26, 2009 #2

   rl.bhat

   

   Homework Helper

   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.

    

   rl.bhat, Apr 26, 2009
4. Apr 26, 2009 #3

   jayjay112

   

   Thank you for clearing that up!!!!

    

   jayjay112, Apr 26, 2009

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