Modern Physics - Semiconductor Electronics

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Q. What type of junction is formed when p-type and n-type semiconductors are joined? (2022)
  • A. p-n junction
  • B. p-p junction
  • C. n-n junction
  • D. p-n-p junction
Q. What type of semiconductor is formed by adding trivalent impurities? (2023)
  • A. N-type
  • B. P-type
  • C. Intrinsic
  • D. Superconductor
Q. Which device is used to convert AC to DC? (2023)
  • A. Transistor
  • B. Diode
  • C. Capacitor
  • D. Inductor
Q. Which of the following devices is based on the principle of a p-n junction? (2023)
  • A. Resistor
  • B. Capacitor
  • C. LED
  • D. Inductor
Q. Which of the following is a characteristic of a diode? (2023)
  • A. Allows current to flow in both directions
  • B. Allows current to flow in one direction
  • C. Has no resistance
  • D. Is a superconductor
Q. Which of the following is a characteristic of a semiconductor? (2023)
  • A. High conductivity at all temperatures
  • B. Zero conductivity at absolute zero
  • C. Infinite resistance
  • D. Conductivity only at high temperatures
Q. Which of the following is a characteristic of a Zener diode? (2019)
  • A. Used for rectification
  • B. Operates in reverse bias
  • C. Has a high forward voltage drop
  • D. Acts as a switch
Q. Which of the following is a characteristic of p-type semiconductors? (2022)
  • A. Excess electrons
  • B. Excess holes
  • C. High conductivity
  • D. Low melting point
Q. Which of the following is a common application of photodiodes? (2022)
  • A. Voltage regulation
  • B. Light detection
  • C. Signal amplification
  • D. Energy storage
Q. Which of the following is a common application of semiconductors? (2019)
  • A. Light bulbs
  • B. Transistors
  • C. Resistors
  • D. Capacitors
Q. Which of the following is a p-type semiconductor? (2020)
  • A. Silicon doped with phosphorus
  • B. Silicon doped with boron
  • C. Germanium doped with arsenic
  • D. Gallium nitride
Q. Which of the following is a property of intrinsic semiconductors? (2023)
  • A. Doped with impurities
  • B. High conductivity
  • C. Pure form
  • D. Low melting point
Q. Which of the following is used to create a p-n junction? (2020)
  • A. Doping
  • B. Ionization
  • C. Sublimation
  • D. Condensation
Q. Which of the following materials is a common intrinsic semiconductor? (2020)
  • A. Copper
  • B. Silicon
  • C. Aluminum
  • D. Iron
Q. Which type of semiconductor has a higher concentration of holes? (2023)
  • A. N-type
  • B. P-type
  • C. Intrinsic
  • D. Extrinsic
Q. Which type of semiconductor is formed by doping silicon with phosphorus? (2020)
  • A. p-type
  • B. n-type
  • C. Intrinsic
  • D. Superconducting
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