Electrical Machines
When two DC series motors are connected in parallel, the resultant speed is

 normal speed.
 less than normal speed.
 zero.
 more than normal speed.

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Electrical Machines
In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting

  the damper bars develop synchronous motor torque.
  the damper bars develop induction generator torque.
  the damper bars develop induction motor torque.
  negative sequence currents are generated.

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