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Electrical Machines
What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field?
Synchronous speed
Slip speed
None of these
Zero
Synchronous speed
Slip speed
None of these
Zero
Answer
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Related Question
Electrical Machines
Which single phase motor is used for a refrigerator?
Universal.
Split phase.
Capacitor run.
Repulsion.
Universal.
Split phase.
Capacitor run.
Repulsion.
Answer
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Electrical Machines
In travelling cranes for crane travel, trolley and boom hoist which motor is preferred?
Slip ring induction motor.
Stepper motor.
DC differential compound motor.
Synchronous motor.
Slip ring induction motor.
Stepper motor.
DC differential compound motor.
Synchronous motor.
Answer
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Electrical Machines
In DC generators, electric current to the external circuit from armature is given through
none of above.
slip rings.
commutator.
solid connection.
none of above.
slip rings.
commutator.
solid connection.
Answer
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Electrical Machines
Generator works on the principle of production
dynamically induced emf.
static induced emf.
both A and B.
None of these
dynamically induced emf.
static induced emf.
both A and B.
None of these
Answer
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Electrical Machines
In which of the following DC Motor the ratio of starting torque to full load torque is minimum?
Shunt motor.
Cumulative compound motor.
Series motor.
Differential compound motor.
Shunt motor.
Cumulative compound motor.
Series motor.
Differential compound motor.
Answer
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