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Electrical Machines

Electrical Machines
Stepper motor is used in

 food processing
 traction
 computer printers
All of these

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Electrical Machines
The speed of rotating magnetic field of 8 pole 50 Hz induction motor is

 3000 rpm
 1000 rpm
 1500 rpm
 750 rpm

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Electrical Machines
Generator works on the principle of production

 dynamically induced emf.
 static induced emf.
None of these
 both A and B.

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Electrical Machines
The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in

  star.
  delta or star according to need.
None of these
  delta.

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Electrical Machines
When Flemings right hand rule to find the direction of induced emf, the thumb points towards

 direction of induced emf.
 opposite to the direction of motion of the conductor.
 direction of motion of the conductor.
 direction of flux.

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Electrical Machines
Which of the following represents the pitch factor?

 Cos α²
 Cos (α/2)
 Cos α
 sin (α/2)

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MORE MCQ ON Electrical Machines

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