A Synchronous Motor Is Running with Normal Excitation

question 17

Multiple Choice

A synchronous motor is running with normal excitation. When the load is increased, the armature current drawn by it increases because

• A)speed of the motor is reduced
• B)power factor is decreased
• C)Eb (back e.m.f.) becomes less than V (applied voltage)
• D)Er (net resultant voltage) in armature is increased

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