What is the speed range of poly phase Commutator motors?

Q.  What is the speed range of poly phase Commutator motors?
- Published on 30 Sep 15

a. 0.5 Ns to 1 Ns
b. 0.5 Ns to 1.5 Ns
c. 0.1 Ns to 2 Ns
d. 0.5 Ns to 2.5 Ns

ANSWER: 0.5 Ns to 1.5 Ns

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