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Electrical Machines

Electrical Machines
The emf induced in the dc generator armature winding is

 AC
None of these
 DC
 AC and DC

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Electrical Machines
Rotating magnetic field is produced in an induction motor because of

  either stator winding or rotor winding.
  rotor winding.
  stator winding.
None of these

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Electrical Machines
Which single phase motor is used for a refrigerator?

  Repulsion.
  Split phase.
  Universal.
  Capacitor run.

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Electrical Machines
Commutator in DC generator is used for

 reduce losses
 collecting of current
 convert AC armature current in to DC
 increase efficiency

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Electrical Machines
The principle of dynamically induced emf is utilized in

 generator.
 choke.
 transformer.
 thermocouple.

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Electrical Machines
The primary and secondary windings of a transformer are

  conductively linked.
  inductively linked.
 mechanically linked.
 electrically linked.

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