JEE Main Physics: Semiconductor Devices Practice Questions

13 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

  1. Q1.
    In an intrinsic semiconductor at room temperature, the number of electrons and holes are related as
    Easy
  2. Q2.
    Which of the following materials is commonly used as a dopant to create a p-type semiconductor from silicon?
    Easy
  3. Q3.
    The forbidden energy gap for a semiconductor is typically of the order of
    Easy
  4. Q4.
    In a forward biased p-n junction diode, the width of the depletion layer
    Easy
  5. Q5.
    The conductivity of a semiconductor increases with temperature because
    Easy
  6. Q6.
    In a common emitter transistor amplifier, the input resistance is 500 ohm and the output resistance is 50 kilo-ohm. If the current gain is 50, the voltage gain
    Medium
  7. Q7.
    A Zener diode with a breakdown voltage of 10 V is used in a voltage regulator circuit. If the input voltage varies from 12 V to 16 V and the load resistance is
    Medium
  8. Q8.
    In an intrinsic semiconductor at room temperature, the number of electrons and holes are equal. If the number of electrons is 10 to the power 16 per cubic meter
    Medium
  9. Q9.
    For a common base transistor circuit, the current amplification factor is 0.95. If the emitter current is 1 mA, the base current is
    Medium
  10. Q10.
    In a common emitter transistor amplifier, the input resistance is 500 ohms and the output resistance is 50 kilo-ohms. If the current gain is 50, what is the vol
    Hard
  11. Q11.
    A Zener diode with a breakdown voltage of 10 volts is used in a voltage regulator circuit. If the input voltage varies from 12 volts to 16 volts and the load cu
    Hard
  12. Q12.
    In an intrinsic semiconductor at room temperature, the number of electrons and holes are equal. If the temperature increases, how does the Fermi level shift?
    Hard
  13. Q13.
    In a p-n junction diode, the depletion layer width is 1 micrometer and the potential barrier is 0.7 volts. What is the magnitude of the electric field in the de
    Hard

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Semiconductor Devices — JEE Main Physics Practice Questions with Solutions | SolveGini