Question: For a dc machine, its commutator has a diameter of 50 c rotating at 1000 rpm. For a brush width of 1 cm, the time commutation taken by the machine will be _________
Options
A : 0.382 ms
B : 0.456 ms
C : 0.573 ms
D : 0.312 ms
Electrical Machines Dc Motor Starting more questions
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