If the average coil emf of a DC motor is doubled and flux is halved (k – McqOptions

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1.	If the average coil emf of a DC motor is doubled and flux is halved (keeping other parameters constant) then its shaft speed will become ___________
A.	Twice of the original speed
B.	Square of the original speed
C.	Four times of the original speed
D.	Half of the original speed
Answer» D. Half of the original speed

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