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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 [Correct Answer] |
B. | 12 [Wrong Answer] |
C. | 6 [Wrong Answer] |
D. | none of the above. [Wrong Answer] |