ELECTRICAL MACHINES QUIZ

 unity slip

 high slip region

 both 1 and 2

 low slip region

 is in the same direction as the main poles.

  makes an angle of 90° with the main pole axis.

 is in direct opposition to the main poles.

 makes an angle with the main pole axis which is load dependent.

 Ampere law.

 Lenz's law.

 Fleming's right hand rule.

 Fleming's left hand rule.

 both A and B.

 terminal voltage should be same.

 rating of generators should be same.

 polarities should be same.

  of low resistivity.

  lighter in weight.

  cheaper in cost.

  easy to cast owing to its low melting point and is easily available.

 current and emf at the terminals are alternating.

 current and emf in armature are unidirectional

 emf in armature conductors and at the terminals is alternating.

 current and emf in armature are alternating.

 3-phase synchronous motor

 3-phase synchronous generator

 reluctance motor

 hysteresis motor

 200 V

 230 V

 460 V

 115 V

 1000W

 3000W

 500W

 100W

  none of above.

  crossmagnetising.

  magnetising.

 demagnetising.