Which of the following can be done using a synchronous motor but not by induction motor?(a) Power factor improvement(b) Supplying mechanical load(c) Power factor improvement and supply mechanical load(d) None of the mentionedThis question was posed to me by my college director while I was bunking the class.My doubt stems from Applications of Polyphase Induction Motors in section Induction Machines of Electrical Machines

Which of the following can be done using a synchronous motor but not b

1.	Which of the following can be done using a synchronous motor but not by induction motor?(a) Power factor improvement(b) Supplying mechanical load(c) Power factor improvement and supply mechanical load(d) None of the mentionedThis question was posed to me by my college director while I was bunking the class.My doubt stems from Applications of Polyphase Induction Motors in section Induction Machines of Electrical Machines
Answer» Right choice is (a) Power FACTOR improvement Best explanation: Induction motor is a singly EXCITED MACHINE and it always needs EXCITING current to SET up the flux in the machine.

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