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ELECTRICAL MACHINES

Electrical Machines
The stator core of a 3 - Φ induction motor is laminated in order to reduce the

  both of the above.
  eddy current loss.
  hysteresis loss.
  weight of the stator.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a three phase slip-ring induction motor, brushes are connected to

  3 - Φ AC supply.
  external star-connected resistors.
  equalizing coils.
  DC supply.

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The squirrel cage induction motors are provided with blades in order to

  none of these.
  balance the rotor dynamically.
  eliminate noise.
  facilitate cooling of rotor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Induction motors normally use cast aluminium rotor because aluminium is

  easy to cast owing to its low melting point and is easily available.
  of low resistivity.
  lighter in weight.
  cheaper in cost.

ANSWER DOWNLOAD EXAMIANS APP
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