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A 220 V dc machine has an armature resistance of 1ω. If the full load current is 20 A, the difference of induced voltage, when the machine is running as a motor and generator, is | |
A. | 20 V [Wrong Answer] |
B. | 0 V [Wrong Answer] |
C. | 40 V [Correct Answer] |
D. | 60 V [Wrong Answer] |