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EEE :: Electronics and Instrumentation

  1. CMRR is more in __________

  2. A.

     Single ended amplifier

    B.

     Differential amplifier

    C.

     Inverting operational amplifier

    D.

     Chopper amplifier

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  3. If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be

  4. A.

     X/Y

    B.

     X*Y

    C.

     X+Y

    D.

     X-Y

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  5. S1: Transducer is a device which converts physical into electrical quantity
    S2: Transducer is also called as sensor.

  6. A.

     S1 is true & S2 is false

    B.

     S2 is true & S1 is false

    C.

     Both S1 & S2 are true

    D.

     Both S1 & S2 are false

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  7. The principle of operation of variable resistance transducer is

  8. A.

     Deformation leads to change in resistance

    B.

     Displacement of a contact slider on a resistance

    C.

     Coupling of two coils changes with displacement

    D.

     Movement of magnetic field produces variation in resistance of material

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  9. Resistively generated inference arises through incorrect __________________.

  10. A.

     Grounding

    B.

     Current density at the electrodes

    C.

     Supply voltage

    D.

     Input impedance

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  11. An ammeter is connected in ___________ with the circuit element whose current we wish to measure

  12. A.

     Series

    B.

     Parallel

    C.

     Series or parallel

    D.

     None of the above

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  13. If a multimeter has a sensitivity of 1000 Ω per volt and reads 50 V full scale, its internal resistance is ___________

  14. A.

     20 kΩ

    B.

     50 kΩ

    C.

     10 kΩ

    D.

     None of the above

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  15. A VTVM has ___________ input resistance than that of a multimeter

  16. A.

     More

    B.

     Less

    C.

     Same

    D.

     None of the above

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  17. Piezo-electric transducers are

  18. A.

     Passive transducers

    B.

     Inverse transducers

    C.

     Digital transducers

    D.

     Pulse transducers

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  19. Photo conductive cell consists of a thin film of

  20. A.

     Quartz

    B.

     Lithium sulphate

    C.

     Barium titanate

    D.

     Selenium

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