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EEE :: FET(Field Effect Transistors)

  1. At series resonance, the circuit offers ___________ impedance

  2. A.

     Zero

    B.

     Maximum

    C.

     Minimum

    D.

     None of the above


  3. A tuned amplifier is generally operated in ___________ operation

  4. A.

     Class A

    B.

     Class C

    C.

     Class B

    D.

     None of the above


  5. If a high degree of selectivity is desired, then double-tuned circuit should have ___________ coupling

  6. A.

     Loose

    B.

     Tight

    C.

     Critical

    D.

     None of the above


  7. A resonant circuit contains ___________ elements

  8. A.

     R and L only

    B.

     R and C only

    C.

     Only R

    D.

     L and C


  9. IC = ß IB + ___________

  10. A.

     ICBO

    B.

     IC

    C.

     ICEO

    D.

     aIE


  11. For faithful amplification by a transistor circuit, the value of VBE should ___________ for a silicon transistor

  12. A.

     Be zero

    B.

     Be 0.01 V

    C.

     Not fall below 0.7 V

    D.

     Be between 0 V and 0.1 V


  13. An ideal value of stability factor is ___________

  14. A.

     100

    B.

     200

    C.

     More than 200

    D.

     1


  15. At series or parallel resonance, the circuit power factor is ___________

  16. A.

     0%

    B.

     5%

    C.

     10%

    D.

     8%


  17. The relation between ß and a is ___________

  18. A.

     ß = 1 / (1 – a )

    B.

     ß = (1 – a ) / a

    C.

     ß = a / (1 – a )

    D.

     ß = a / (1 + a )


  19. If Q of an LC circuit increases, then bandwidth ___________

  20. A.

     Increases

    B.

     Decreases

    C.

     Remains the same

    D.

     Insufficient data