Back emf is 120V when motor is turning at 1680 rev/min, and the back e – McqOptions

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1.	Back emf is 120V when motor is turning at 1680 rev/min, and the back emf when motor rotates at 3360 rev/min will be
A.	220V
B.	240V
C.	260V
D.	280V
Answer» C. 260V

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