Electrical Machines
For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V.

  222 V.
 230 V.
 225 V.
 220 V.

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Electrical Machines
In a loaded DC generator, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will

 deteriorate with rise in terminal voltage.
 improve with rise in terminal voltage.
 deteriorate with fall of terminal voltage.
 improve with fall of terminal voltage.

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