If the speed of rotation of a separately excited dc machine is halved – McqOptions

MCQOPTIONS

1.	If the speed of rotation of a separately excited dc machine is halved and the filed strength is also reduced to half of the original. Then the emf induced in the armature _____________
A.	reduces to 1/4th of original
B.	reduces to half of original
C.	remains same
D.	doubles
Answer» B. reduces to half of original

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