Electrical Machines
For a DC Motor for constant load torque, what will happen to the armature current if armature resistance increases?

 Decreases.
 Remain unchanged
 Increases.
 None of above.

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Electrical Machines
In a DC machine

 current and emf in armature are alternating.
 emf in armature conductors and at the terminals is alternating.
 current and emf at the terminals are alternating.
 current and emf in armature are unidirectional

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