Q.
In a dc machine

AThe current and emf in armature conductors are alternating while those at the terminals are unidirectional
BThe current and emf in armature conductors are unidirectional while those at the terminals are alternating
CThe current and emf in armature conductors and at the terminals are unidirectional
DThe emf in armature conductors and at the terminals is alternating while current there is unidirectional

Correct Answer : (A)
The current and emf in armature conductors are alternating while those at the terminals are unidirectional

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