Electrical Machines
For a standard frequency the machine operates at a particular speed known as

 slip speed.
 any of the above.
 synchronous speed.
 normal speed.

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Electrical Machines
In a stepper motor the detente torque means

  minimum of the static torque with the phase winding excited.
  minimum of the static torque with the phase winding unexcited.
  maximum of the static torque with the phase winding excited.
  maximum of the static torque with the phase winding unexcited.

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