Synchronous Motors

As the load is applied to a synchronous motor, the motor takes more armature current because

  • A. The increased load has to take more current
  • B. The rotor by shifting its phase backward causes motor to take more current
  • C. The back e.m.f. decreases causing an increase in motor current
  • D. The rotor strengthens the rotating field causing more motor current
Answer: Option B.
Explanation: 

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