Electrical Machines
Direction of rotation of DC motor is reversed by

 Reversing supply connection.
 Interchanging armature and field connection.
 Reversing armature connection or field connection.
 Adding resistance to field circuit.

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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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