Electrical Machines
High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance.

 both A and B
 none of above
 armature circuit
 shunt field

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Electrical Machines
For a given torque, reducing diverter resistance of a DC series motor causes

 increase in speed but armature currnet remains the same.
 decrease in speed demanding less armature current.
 decrease in speed but armature current remains the same.
 increase in speed demanding more armature current.

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