Electrical Machines
A DC series motor is running with a divertor connected across its field winding. If the divertor resistance is reduced then the speed of the motor will

 remain unaltered.
 increase.
 become execessively high.
 decrease.

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

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

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