For a DC machine, given Diameter of the commutator= 0.48 m, Speed = 600 rpm. What is the voltage across the commutator?

For a DC machine, given Diameter of the commutator= 0.48 m, Speed = 60

1.	For a DC machine, given Diameter of the commutator= 0.48 m, Speed = 600 rpm. What is the voltage across the commutator?
A.	15 V
B.	15.5 V
C.	15.2 V
D.	15.1 V
Answer» E.