Electrical Machines
For a single phase capacitor start induction motor which of the following is valid?

  Rotation can be changed by reversing main winding terminals.
 Direction of rotation cannot be changed.
 None of these.
 Rotation can be changed by interchanging supply terminals.

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Electrical Machines
In a DC machine the armature mmf is

  stationary with respect to armature.
  stationary with respect to field poles.
 rotating with respect to field poles.
  rotating with respect to field poles as well as armature.

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