31.
A synchronous motor is running on a load with normal excitation. Now if the load on the motor is increased

35.
If excitation of a synchronous motor running with a constant load is decreased from its normal value, ignoring effects of armature reaction, it leads to

38.
If in a synchronous motor, driving a given mechanical load and drawing current at a leading power factor from constant voltage supply its field excitation is increased, its power factor

39.
Synchronous motors are generally not self-starting because

40.
The synchronous motor is not inherently self-starting because

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