A 240V dc shunt motor with an armature resistance of 0.5 Ω has a full-load current of 40 A.
Find the ratio of the stalling torque to the full-load torque when a resistance of 1 Ω is connected in series with the armature
A. 4
B. 12
C. 6
D. none of the above.
Show Answer
Answer: A
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