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Physics - Semiconductors

Practise 237 NEET NTA questions on Semiconductors. Each question shows a quick preview so you can jump straight to the topic you want to revise.

Semiconductors has been asked in 0 of the 38 years of NEET NTA papers analysed (1988–2025), with 237 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2025, with 0 questions that year. In the last three years (2023–2025) it had 0 questions across 6 papers, about 0 per paper.

All of the chapter's questions come from a single topic, Uncategorized.

  1. 1If A B is given in figure, then output will be
  2. 2The reverse voltage at which the current increases enormously, in a p-n junction, is called
  3. 3When a silicon p-n junction is in forward biased condition with a series resistance, it has a knee voltage of 0.6 V . If 5 mA of current flo
  4. 4Figure gives a system of logic gates. From the study of truth table it can be found that to produce a high output (1) at R , we must have
  5. 5The current gain for a transistor used in common-emitter configuration is 98 . If the load resistance be 1 M Ω and the internal resistance b
  6. 6An n-p-n transistor conducts when
  7. 7A change of 8 . 0 mA in the emitter current brings a change of 7 . 9 mA in the collector current. The values of and are
  8. 8With respect to the potential of emitter, base and collector, a NPN transistor conducts when
  9. 9Current in the given circuit will be
  10. 10The combination of gates shown in the figure below produces.
  11. 11With forward bias mode, the p - n junction diode
  12. 12A large parallel plate capacitor, whose plates have an area of 1 m 2 and are separated from each other by 1 mm , is being charged at a rate
  13. 13Which logic gate is represented by the following combination of logic gates?
  14. 14A waveform shown when applied to the following circuit will produce which of the following output waveforms. Assume ideal diode configuratio
  15. 15A common emitter transistor amplifier has a current gain of 50 . If the load resistance is 4 kΩ and input resistance is 500 Ω .then the volt
  16. 16For the circuit shown in the figure. The equivalent resistance between point A and B for the two cases (i) V A V B , (ii) V B V A respective
  17. 17A ⋅ B ̄ + A ̄ ⋅ B ¯ is equivalent to
  18. 18When p - n junction diode is forward biased, then
  19. 19What is the voltage across an ideal p-n junction diode for shown circuit?
  20. 20The value of β of a transistor is 19. The value of α will be
  21. 21The output Y of the combination of logic gates shown is equal to
  22. 22The electrical conductivity of a semiconductor increases when electromagnetic radiation of a wavelength shorter than 2480 nm is incident on
  23. 23To get an output y = 1 in the given circuit, which of the following input is correct?
  24. 24A transistor is used as an amplifier in common base mode with a load resistance of 5 kΩ . The current gain of the amplifier is 0 . 98 and th
  25. 25In N P N transistor 1 0 10 electrons enters in emitter region in 1 0 - 6 s . If 2 % electrons are lost in base region then collector current
  26. 26The energy band gap is maximum in
  27. 27Identify the logic operation performed by the circuit given here.
  28. 28A combination of logic gates has the truth table below. Which of the following combinations has this truth table
  29. 29The collector current for a transistor is 6.6 m A and its α = 0.95 , then value of β and base current I B are best given by
  30. 30An AND gate is followed by a NOT gate. With two inputs A and B , the boolean expression for the output Y will be
  31. 31For a transistor, α d c and β d c are the current ratios, then the value of β d c - α d c α d c ⋅ β d c is
  32. 32A common emitter amplifier has a voltage gain of 50 , an input impedance of 100 Ω and an output impedance of 200 Ω . The power gain of the a
  33. 33In a CE transistor amplifier, the audio signal voltage across the collector resistance of 2 K Ω is 2V. if the base resistance is 1 K Ω and t
  34. 34To get an output 1 from the circuit shown in the figure, the input must be
  35. 35Find the potential difference between A and B as shown in the figure
  36. 36A change of 8 . 0 mA in the emitter current brings a change of 7 . 9 mA in the collector current. The values of α a n d β are
  37. 37A transistor oscillator is (i) An amplifier with positive feedback (ii) An amplifier with reduced gain (iii) The one in which DC supply ener
  38. 38Currents flowing in each of the following circuits A and B respectively are
  39. 39Consider the junction diode as ideal. The value of current flowing through AB is
  40. 40The combination of NAND gates shown here in the figure give output C and C ' . C and C ' are equivalent to
  41. 41Depletion layer in the p- n junction consists of
  42. 42If we add impurity to a metal, those atoms also deflect electrons. Therefore,
  43. 43Which logic gate is represented by the following combination of logic gates?
  44. 44The given electrical network is equivalent to :
  45. 45In a common-emitter transistor amplifier, the audio signal voltage across the collector is 3 V. The resistance of collector is 3 kΩ . If cur
  46. 46In the figure there is a DC voltage regulator circuit, with a Zener breakdown voltage = 6 V . If the unregulated input voltage varies betwee
  47. 47In a full-wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the rectifier wave would be
  48. 48If input in a full-wave rectifier is e = 50 sin ⁡ 314 t volt , diode resistance is 100 Ω and load resistance is 1 kΩ then, pulse frequency o
  49. 49The dominant mechanisms for motion of charge carriers in forward and reverse biased silicon p-n junctions are
  50. 50A transistor is used as an amplifier in common base mode with a load resistance of 5 k Ω . If the current gain of amplifier is 0.98 and the

Frequently Asked Questions

1.How many questions are available for Semiconductors?

This chapter includes 237 NEET NTA questions.

2.Are these questions only from NEET NTA, or from other exams too?

These are NEET NTA questions specifically for the Semiconductors chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.

3.What is the difficulty level of Semiconductors questions in NEET NTA?

Of the 237 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2025 had the most, with 0 questions.

4.Which topics in Semiconductors should I focus on?

All of this chapter's questions come from a single topic: Uncategorized.