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Electrical Machines

Electrical Machines
We can apply source transformation to voltage source when a resistance is connected to it in

 14 HP.
  10 HP.
  13 HP.
 15 HP.

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Electrical Machines
In dc machines, the space distribution of air-gap flux density wave at no load is

 co- sinusoidal
 flat-topped
 rectangular
 sinusoidal

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Electrical Machines
In a single phase induction motor, the starting torque developed is proportional to

 1/V
 supply voltage V
 1/V²
 V²

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Electrical Machines
The direction of rotation of a DC motor can be determent by

 Amperes law.
 Flemings right hand rule.
  Flemings left hand rule.
 Lenzs law.

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Electrical Machines
Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator?

 Eye bolt.
 Commutator.
 Dummy coils.
 Equalizer rings.

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Electrical Machines
A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed?

 0.
 2000.
 500.
 1000.

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MORE MCQ ON Electrical Machines

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