Electrical Machines
Which of the following starter is sufficient to start the DC series motor ?

 3 point starter
 4 point starter
All of these
 2 point starter

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Electrical Machines
In synchronous generator, inverted V curve is drawn between

 field current on Y-axis and power factor on X-axis
 field current on X-axis and power factor on Y-axis
 field current on Y-axis and armature current on X-axis
 field current on X-axis and armature current on Y-axis

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