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Question
what is meant by Back emf ?where its occur ?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
the voltage generated due to the raotation of armature is
called back emf and it tries to oppose the terminal voltage.
 
Is This Answer Correct ?    14 Yes 3 No
Manjunatha
 
Answer
# 2
Back emf is regeneration in dc motors 
Is This Answer Correct ?    4 Yes 0 No
Jayan
 
 
 
Answer
# 3
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.
 
Is This Answer Correct ?    5 Yes 2 No
Kapil Bahadure
 
Answer
# 4
`back emf is happen in case of d c motor.it working to
oppose the terminal voltage.
 
Is This Answer Correct ?    10 Yes 8 No
Harekrushna Sahoo
 
Answer
# 5
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...
 
Is This Answer Correct ?    1 Yes 0 No
Alvin
 

 
 
 
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