Question
Electrical Machines Question on Back EMF
A 250 V shunt motor has an armature current of 50 A. If armature resistance is 0.4Ω, the back emf is
A
205 V
B
235 V
C
230 V
D
225 V
Answer
230 V
Explanation
Solution
The correct option is (C): 230 V
A 250 V shunt motor has an armature current of 50 A. If armature resistance is 0.4Ω, the back emf is
205 V
235 V
230 V
225 V
230 V
The correct option is (C): 230 V