Q
Open circuited armature coil of a D.C. machine is________________?
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A
A. Identified by the scarring of the commutator segment to which open circuited coil is connected
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B
B. Indicated by a spark completely around the commutator
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C
C. Both a. and (b)
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D
D. None of the above
Correct Answer:
C. C. Both a. and (b)
