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

  • Match the following:

    List I List II
    A. Zener diode 1. used in seven segment display
    B. Tunnel diode 2. used in voltage regulator circuits
    C. LED 3. used is solar energy utilization
    D. Photovoltaic cell 4. used in digital circuits


  • Options
  • A. A-1, B-3, C-2, D-4
  • B. A-2, B-3, C-1, D-4
  • C. A-2, B-4, C-1, D-3
  • D. A-3, B-2, C-4, D-1

  • Correct Answer
  • A-2, B-4, C-1, D-3 

    • More questions

    • 1. Which mode is called dominant mode in rectangular wave guide?

    • Options
    • A. TE01
    • B. TE11
    • C. TE10
    • D. TE20
      • Discuss
    • 2. A 3 phase fully controlled converter is a

    • Options
    • A. 3 pulse converter
    • B. 6 pulse converter
    • C. 2 pulse converter
    • D. 12 pulse converter
      • Discuss
    • 3. In a single phase half wave converter feeding resistive load and full wave converter (M - 2 connection) feeding a resistive load the circuit conditions are similar. The firing angle is a. Then the waveshapes of voltages across thyristors

    • Options
    • A. are similar
    • B. are not similar
    • C. may be similar or dissimilar
    • D. are similar only for some values of a
      • Discuss
    • 4. Some types of traps used in video IF amplifier of colour TV are

    • Options
    • A. shunt traps
    • B. series traps
    • C. absorption traps
    • D. all of the above
      • Discuss
    • 5. Which of the following devices exhibit negative resistance characteristics?

    • Options
    • A. UJT
    • B. PUT
    • C. Both UJT and PUT
    • D. UJT, PUT and SBS
      • Discuss
    • 6. In molecules of ionic crystals, orientation polarization is zero.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Assertion (A): Magnetism can be explained by the theory of magnetic domains.

      Reason (R): The existence of magnetic domains is evident from the Bitter powder patterns.


    • Options
    • A. Both A and R are true and R is correct explanation of A
    • B. Both A and R are true but R is not correct explanation of A
    • C. A is true but R is false
    • D. A is false but R is true
      • Discuss
    • 8. Interference generated by electrical equipment and automobile ignition systems when observed closed to earth is

    • Options
    • A. horizontally polarized
    • B. vertically polarized
    • C. polarized both horizontally
    • D. not polarized
      • Discuss
    • 9. Frequency range for satellite communication is

    • Options
    • A. 1 kHz to 100 kHz
    • B. 100 kHz to 10 MHz
    • C. 10 MHz to 100 MHz
    • D. 1 GHz to 30 GHz
      • Discuss
    • 10. To prevent a DC return between source and load, it is necessary to use

    • Options
    • A. resistor between source and load
    • B. inductor between source and load
    • C. capacitor between source and load
    • D. either (a) or (b)
      • Discuss

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