41. The power developed by a synchronous motor will be maximum when the load angle is
42. In a synchronous motor, V-curves represent relation between
43. The maximum torque which a synchronous motor will develop at rest for any angular position of the rotor, at rated stator supply voltage and frequency, is known as
44. In a synchronous motor, the armature current has large values for
45. The coupling angle or load angle of synchronous motor is defined as the angle between the
46. The armature current of the synchronous motor
47. If in a synchronous motor, driving mechanical load and drawing current at lagging power factor from constant voltage supply, its field excitation is increased, then its power factor
48. The maximum value of torque that a synchronous motor can develop without losing its synchronism, is known as
49. Exciters of synchronous machines are
50. A synchronous motor running with normal excitation adjusts to load increases essentially by increase in
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