Electrical Machines
In a step down transformer which one of the following statements is true?

 Secondary power is less than primary power.
  Number of secondary turns is less than primary turns.
 Secondary current is less than primary current.
 Number of secondary turns is more than that of primary.

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Electrical Machines
When the supply terminal of a DC shunt motor are interchanged

 The motor will run much faster in the same direction.
 The direction of rotation will reverse.
 The motor will stop.
  The motor will run at its normal speed in the same direction as before.

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