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EEE :: FET(Field Effect Transistors)

  1. In a transistor ___________

  2. A.

     IC = IE + IB

    B.

     IB = IC + IE

    C.

     IE = IC - IB

    D.

     IE = IC + IB


  3. The leakage current in CE arrangement is ___________ that in CB arrangement

  4. A.

     more than

    B.

     less than

    C.

     the same as

    D.

     none of the above


  5. In the double tuned circuit, if the mutual inductance between the two tuned circuits is decreased, the level of resonance curve ___________

  6. A.

     Remains the same

    B.

     Is lowered

    C.

     Is raised

    D.

     None of the above


  7. The arrow in the symbol of a transistor indicates the direction of ___________

  8. A.

     electron current in the emitter

    B.

     electron current in the collector

    C.

     hole current in the emitter

    D.

     donor ion current


  9. In the above question, what are the values of cut-off frequencies?

  10. A.

     140 kHz , 60 kHz

    B.

     1020 kHz , 980 kHz

    C.

     1030 kHz , 970 kHz

    D.

     None of the above


  11. In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________

  12. A.

     XL decreases and XC increases

    B.

     XL increases and XC decreases

    C.

     Line current becomes minimum

    D.

     None of the above


  13. In parallel resonance, the circuit impedance is ___________

  14. A.

     C/LR

    B.

     R/LC

    C.

     CR/L

    D.

     L/CR


  15. Transistor biasing is generally provided by a ___________

  16. A.

     Biasing circuit

    B.

     Bias battery

    C.

     Diode

    D.

     None of the above


  17. The value of VBE ___________

  18. A.

     Depends upon IC to moderate extent

    B.

     Is almost independent of IC

    C.

     Is strongly dependant on IC

    D.

     None of the above


  19. If the value of collector current IC increases, then the value of VCE ___________

  20. A.

     Remains the same

    B.

     Decreases

    C.

     Increases

    D.

     None of the above