250V, 15A, 1100 rpm separately excited dc motor with armature resistan – McqOptions

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1.	250V, 15A, 1100 rpm separately excited dc motor with armature resistance (R_a) equal to 2 ohms. Calculate back emf developed in the motor when it operates on half of the full load. (Assume rotational losses are neglected)
A.	210V
B.	240V
C.	230V
D.	235V
Answer» E.

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