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Home ‣ Electronics and Communication Engineering ‣ Microwave Communication See What Others Are Saying!
  • Question

  • Consider the following statements

    1. Gunn diode can be used in combinational logic circuits.
    2. Gunn diode can be used in sequential logic circuits.
    3. Both Gunn diode and GaAs Mesfet can be used in logic circuits.
    Which of the above statements are correct?


  • Options
  • A. 1, 2, and 3
  • B. 1 and 2 only
  • C. 2 and 3 only
  • D. 1 and 3 only

  • Correct Answer
  • 1, 2, and 3 

    • More questions

    • 1. The symbol in figure is for

    • Options
    • A. UJT
    • B. PUT
    • C. SCS
    • D. SBS
      • Discuss
    • 2. Which of these devices can conduct in both directions?

    • Options
    • A. SCR
    • B. SUS
    • C. SBS
    • D. UJT
      • Discuss
    • 3. In the given figure forward current wave has a magnitude of

    • Options
    • A. 0.45 A
    • B. 0.3 A
    • C. 0.2 A
    • D. 0.1 A
      • Discuss
    • 4. A typical signal strength received from a geosynchronous communication satellite is of the order of a few

    • Options
    • A. milliwatts
    • B. kilowatts
    • C. picowatts
    • D. watts
      • Discuss
    • 5. The temperature at which some materials become superconductors is called

    • Options
    • A. Transition temperature
    • B. Curie temperature
    • C. Neel temperature
    • D. Onnes temperature
      • Discuss
    • 6. The advantage of modified series inverter with two inductors and two capacitors is

    • Options
    • A. the intermittent operation of battery is avoided
    • B. efficiency of circuit is more
    • C. the output frequency is low
    • D. all of the above
      • Discuss
    • 7. A chopper cannot be line commutated.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. Three point tracking can be achieved with

    • Options
    • A. gang condenser
    • B. variable selectivity
    • C. paddar capacitor
    • D. any of the above
      • Discuss
    • 9. In TE and TM modes of rectangular waveguides having propagation in z direction

    • Options
    • A. Ez and Hz are both zero
    • B. In TE mode Ez is zero and in TM mode Hz is zero
    • C. In TE mode Hz is zero and in TM mode Ez is zero
    • D. In both TE and TM modes both Ez and Hz are non-zero
      • Discuss
    • 10. Standard AM radio broadcasts are confined to

    • Options
    • A. MF
    • B. HF
    • C. VHF
    • D. UHF
      • Discuss

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