Asked in FBISE Physics 2022 — Paper 1 2022Moderate

Which factor does not affect the conductivity of a PN junction diode?

Correct answer: D. Pressure

  • A. Doping
  • B. Temperature
  • C. Voltage
  • D. Pressure

Explanation

Pressure is the factor that does not affect the conductivity of a PN junction diode. while the other factors; voltage, temperature, and doping are all factors that can influence the diode's conductivity.

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About PN Junction

A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.

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