Q
In case of D.C. shunt motors the speed is dependent on back e.m.f. only because____________?
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A
A. Back e.m.f. is equal to armature drop
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B
B. Armature drop is negligible
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C
C. Flux is proportional to armature current
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D
D. Flux is practically constant in d:c. shunt motors
Correct Answer:
D. D. Flux is practically constant in d:c. shunt motors
