alleryStart learning →A motor on 220 V with armature resistance 2 ohm draws 10 A. What is its back emf?
A240 V
B200 V
C220 V
D20 V
Answer & Solution
Correct answer: B. 200 V
Back emf = supply voltage minus I R = 220 - 10 x 2 = 200 V.
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