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.

 225 V.
 230 V.
  222 V.
 220 V.

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Electrical Machines
If two 8-pole dc machines of identical armature sare wound, one with lap winding and the other with wave winding, then

 lap-wound machine will have more rated voltage and less current
 wave-wound machine will have more rated voltage and less current
 wave-wound machine will have more rated current and more voltage
 lap-wound machine will have more rated voltage and more current

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Electrical Machines
In case of 3 - Φ IM, plugging means

  interchanging two supply phases for quick stopping.
  starting the motor on load which is more than the rated load.
  pulling the motor directly on line without a rotor.
  locking of rotor due to harmonics.

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