A 220V DC series motor is taking a current of 40A. Resistance of armat – McqOptions

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1.	A 220V DC series motor is taking a current of 40A. Resistance of armature is 0.5Ω and series field is 0.25Ω. What is the back emf?
A.	190v
B.	210v
C.	170v
D.	none of the above
Answer» B. 210v

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