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

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

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

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

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