Electrical Machines
With the increase in speed of a DC motor

 both back emf as well as line current fall.
 back emf increases but line current falls.
 back emf falls and line current increases.
 both back emf as well as line current increase.

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

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

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