A 250 V dc shunt motor has Rf = 125 Ω and Ra = 0.5 Ω. The motor oper – McqOptions

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1.	A 250 V dc shunt motor has Rf = 125 Ω and Ra = 0.5 Ω. The motor operates on no load with full field flux at rated speed 1000 rpm with Ia = 5 A. Neglect saturation and armature reaction. The motor drives a load torque of 100 Nm. The armature current of the motor is
A.	80 A
B.	42.2 A
C.	67.8 A
D.	59.3 A
Answer» C. 67.8 A

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