[Solved] A 440V shunt motor has an armature resistance of 0.8Ω field reistnace of 200Ω . Find the back emf when giving an output of 7.46kW at 85 % efficiency?

Q.	A 440V shunt motor has an armature resistance of 0.8Ω field reistnace of 200Ω . Find the back emf when giving an output of 7.46kW at 85 % efficiency?
A.	222.4v
B.	425.8v
C.	312.6v
D.	392.7v
Answer» B. 425.8v

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