Physical electronics devices and ics miscellaneous

Physical electronics devices and ics miscellaneous

Easy Questions

Physical Electronics Devices and ICs

Physical electronics devices and ics miscellaneous
  1. Match List-I with List-II and select the correct answer using the code given below the lists—
    List-I
    (a) Drift current
    (b) Einstein’s equation
    (c) Diffusion current
    (d) Continuity equation
    List-II
    1. Law of conservation of charge
    2. Electric field
    3. Thermal voltage
    4. Concentration gradient Codes:








  1. View Hint View Answer Discuss in Forum

    ● Drift current → Electric field
    ● Einstein’s equation → Thermal voltage
    ● Diffusion current → Concentration gradient
    ● Continuity equation → Law of conservation of charge

    Correct Option: B

    ● Drift current → Electric field
    ● Einstein’s equation → Thermal voltage
    ● Diffusion current → Concentration gradient
    ● Continuity equation → Law of conservation of charge

  1. Match List-I (Diode) with List-II (Applications) and select the correct answer using the code given below the lists—
    List-I
    (a) Varactor diode
    (b) Tunnel diode
    (c) Photodiode
    (d) Zener diode
    List-II
    1. To change auxillary storage batteries
    2. Best choice for silicon ICs
    3. Suitable for ICs of III-V
    4. High frequency switching circuit Codes:








  1. View Hint View Answer Discuss in Forum

    ● Varactor diode →
    ● Tunnel diode →
    ● Photodiode →
    ● Zener diode →

    Correct Option: D

    ● Varactor diode →
    ● Tunnel diode →
    ● Photodiode →
    ● Zener diode →

  1. Group 1 lists four different semiconductor devices. Match each device in Group 1 with its characteristic property in Group 2.
    Group 1 Group 2
    P. BJP 1.Population inversion
    Q. MOS capacitor2. Pinch-off voltage
    R. LASER diode 3. Early effect
    S. JFET 4. Flat-band voltage








  1. View Hint View Answer Discuss in Forum

    ● BJT → Early effect
    ● MOS capacitor → Flat band voltage
    ● LASER diode → Population inversion
    ● JFET → Pinch-off voltage

    Correct Option: C

    ● BJT → Early effect
    ● MOS capacitor → Flat band voltage
    ● LASER diode → Population inversion
    ● JFET → Pinch-off voltage

  1. Group I lists four types of p-n junction diodes. Match each device in Group 1 with one of the options in Group 2 to indicate the bias condition of that device in its normal mode of operation.
    Group 1 Group 2
    P. Zener Diode 1.Forward bias
    Q. Solar cell2. Reverse bias
    R. LASER diode
    S. Avalanche Photodiode








  1. View Hint View Answer Discuss in Forum

    ● Zener Diode → Reverse bias
    ● Solar cell → Forward bias
    ● LASER diode → Forward bias
    ● Avalanche photodiode → Reverse bias

    Correct Option: B

    ● Zener Diode → Reverse bias
    ● Solar cell → Forward bias
    ● LASER diode → Forward bias
    ● Avalanche photodiode → Reverse bias

  1. Find the correct match between and Group 2—
    Group 1 Group 2
    E. Varactor diode 1.Voltage reference
    F. PIN diode2. High-frequency switch
    G. Zener diode 3. Tuned circuits
    H. Schottky diode 4.Current controlled attenuator








  1. View Hint View Answer Discuss in Forum

    ● Varactor diode → Tuned circuits
    ● PIN diode → Current controlled attenuator
    ● Zener diode → Voltage reference
    ● Schottky diode → High frequency switch

    Correct Option: C

    ● Varactor diode → Tuned circuits
    ● PIN diode → Current controlled attenuator
    ● Zener diode → Voltage reference
    ● Schottky diode → High frequency switch