Air gap at the pole tips of a dc machine is kept more than that at the centre of the pole mainly to reduce

  • AReactance voltage
  • BEffect of armature reaction
  • CLosses of armature core
  • DNoise of the machine 
Correct Answer : (B)

Effect of armature reaction

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Torque developed in an electromechanical energy conversion device depends upon


In electromechanical energy conversion devices (e.g generators and motors) a small air gap is left between the stator and the rotor in order to

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