51. A synchronous motor will always stop when
52. Which of the following motors will be used in electric clocks ?
53. When a 3-phase synchronous generator is supplying a zero power factor lagging load, the armature field affects the main field in the following way
54. In a synchronous motor, damper windings are provided on
55. In a synchronous motor, the damping winding is generally used to
56. A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because
57. Under which of the following conditions hunting of synchronous motor is likely to occur ?
58. The torque angle, in a synchronous motor, is the angle between
59. A synchronous motor is running with normal excitation. When the load is increased, the armature current drawn by it increases because
60. If the field winding of an unloaded salient pole synchronous motor is open circuited, the motor will
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