Answer / manjunatha

the voltage generated due to the raotation of armature is
called back emf and it tries to oppose the terminal voltage.

Answer / alvin

back emf refers to the opposing voltage
induced in a motor when motor is
connected to a supply this is as per faradays
law , whenever a current carrying
conductor cuts magnetic field an emf is
induced in it, and is in opposite direction as
that of applied field...

Answer / jayan

Back emf is regeneration in dc motors

Answer / harekrushna sahoo

`back emf is happen in case of d c motor.it working to
oppose the terminal voltage.

Answer / kapil bahadure

Back emf :-DC motor connected to supply then magnetc flux
produced by armature windings.this magnetic flux oppose to
the supply voltage.its denoted by eb.7 also colled as
counter emf.eb occur in the dc machine.
eb=-V-IaRa.

Answer / srinu

back emf is produced in all motors due to rotation ,motor act as generator and produce emf ,this emf is oppose the applied voltage,this is called back emf,this is directelly propostionl to rpm

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