Home / EEE / Transformers :: General Questions

EEE :: Transformers

  1. In a certain transformer, the input power to the primary is 120 W. If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues?

  2. A.
    0 W
    B.
    14.1 W
    C.
    111.5 W
    D.
    1,020 W

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is

  4. A.
    0 V
    B.
    6 V
    C.
    48 V
    D.
    0.75 V

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary?

  6. A.
    0.4
    B.
    4
    C.
    9.6
    D.
    0.96

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is

  8. A.
    1.3
    B.
    7.8
    C.
    78
    D.
    13

    View Answer

    Workspace

    Discuss Discuss in Forum