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Physics - Semiconductors

Practise 88 NTA Abhyas (JEE Main) 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 25 years of NTA Abhyas (JEE Main) papers analysed (2002–2026), with 88 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2026, with 0 questions that year. In the last three years (2024–2026) it had 0 questions across 49 papers, about 0 per paper.

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

  1. 1In the following circuit, a voltmeter V is connected across a lamp L . What change would occur in voltmeter reading if the resistance R is r
  2. 2If the resistivity of pure silicon is 3000 Ω m and the mobilities of electrons and holes are 0 . 12 m 2 V - 1 s - 1 and 0 . 045 m 2 V - 1 s
  3. 3The current gain α of a transistor in common base mode is 0 . 995 . Its gain β in the common-emitter mode is
  4. 4The electrical conductivity of a semiconductor increases when electromagnetic radiation of a wavelength shorter than 2480 nm is incident on
  5. 5A working transistor with its three legs marked P, Q and R is tested using a multimeter. No conduction is found between P and Q. By connecti
  6. 6A transistor oscillator is (i) An amplifier with positive feedback (ii) An amplifier with reduced gain (iii) The one in which DC supply ener
  7. 7A piece of copper and another of germanium are cooled from room temperature to 77 K . The resistance of
  8. 8When the forward bias voltage of a diode is changed from 0 . 6 V to 0 . 7 V , the current changes from 5 mA to 15 mA . Then its forward bias
  9. 9A particular semiconductor in equilibrium has 1 × 10 16 cm - 3 donor atoms, 1 . 1 × 10 17 cm - 3 acceptor atoms. If the intrinsic carrier de
  10. 10The combination of NAND gates shown here in the figure give output C and C ' . C and C ' are equivalent to
  11. 11A transistor, connected in common emitter configuration, has input resistance R in = 2 k Ω and load resistance of 5 k Ω . If β = 6 0 and an
  12. 12The carrier frequency generated by a circuit containing 1 nF capacitor and 10 μ H inductor is
  13. 13The output Y of the combination of logic gates shown is equal to
  14. 14A G e specimen is doped with A l . The concentration of acceptor atoms is ~ 10 21 a t o m s m - 3 . Given that the intrinsic concentration o
  15. 15The DC common-emitter current gain of an n-p-n transistor is 50 . The potential difference applied across the collector and emitter of a tra
  16. 16An N-P-N transistor is being used in CE mode for which the current transfer ratio is, α = 25 26 . The input resistance is 1000 Ω and amplitu
  17. 17An ideal diode is connected in a circuit with resistance R = 50 Ω and V = 10 V . If an AC input signal shown in the figure is given to the c
  18. 18The circuit has two oppositely connect ideal diodes in parallel. What is the current flowing in the circuit?
  19. 19In a CE transistor amplifier, the audio signal voltage across the collector resistance of 2 kΩ is 2 V , if the base resistance is 1 kΩ and t
  20. 20Which among the following statements is correct regarding the dependence of voltage gain of an amplifier on the frequency of the signal?
  21. 21For a transistor, the current amplification factor α is 0 . 8 . If it is connected in common emitter configuration, the change in collector
  22. 22For common emitter transistor amplifier, the audio signal voltage across the collector resistance of 2 k Ω is 4 V. If the current amplificat
  23. 23In the figure shown, R B = 500 kΩ , R C = 8 kΩ , V BB = 10 .6 V and V CC = 20 V . The current amplification factor β = 100 and V BE = 0 .6 V
  24. 24A Zener diode undergoes breakdown for an electric field of 10 6 V m - 1 at the depletion region of p - n junction. If the width of the deple
  25. 25The transfer characteristic curve of a transistor, having input and output resistance 100 Ω and 100 k Ω respectively, is shown in the figure
  26. 26The following arrangement performs the logic function of
  27. 27A particular semiconductor in equilibrium has 1 × 10 16 cm - 3 donor atoms, 1 . 1 × 10 17 cm - 3 acceptor atoms. If the intrinsic carrier de
  28. 28The forward-bias voltage of a diode is changed from 0 . 6 V to 0 . 7 V , the current changes from 5 mA to 15 mA . What is the value of the f
  29. 29A diode AM detector with the output circuit consisting of R = 1 kW and C = 1 μF would be more suitable for detecting a carrier signal of
  30. 30The 6 V Zener diode shown in the figure has negligible resistance and a knee current of 5 mA . The minimum value of R in Ω so that the volta
  31. 31A Zener diode is connected to a battery and a load as shown below: The currents I, I Z and I L are respectively
  32. 32For given logic diagram, output F = 1 , then inputs are
  33. 33The conductivity of a semiconductor sample having electron concentration of 5 × 10 18 e m - 3 , hole concentration of 5 × 10 19 holes m - 3
  34. 34In a common-emitter configuration of a transistor, the base current I E = 2 μ A , α = 0.9 then the value of I C is
  35. 35The part of a circuit shown in the figure consists of two ideal diodes and a few resistors. The equivalent resistance of the circuit between
  36. 36In a common emitter amplifier, the input AC signal to be amplified is applied across
  37. 37For an amplitude modulated wave, the maximum amplitude is found to be 10 V while the minimum amplitude is found to be 2 V. The modulation in
  38. 38Which of the following statements is not true?
  39. 39In the circuit shown in figure, the base current I B is 10 A and the collector current is 5 . 2 mA . The voltage ( V BE ) across the base an
  40. 40In a transistor, the collector current varies by 0.49 m A and emitter current varies by 0.50 A . Current gain β measured is
  41. 41A Zener diode with a breakdown voltage of 4 V is connected in series with a resistance R to a battery of emf 10 V . The maximum power dissip
  42. 42In a p-n junction diode not connected to any circuit
  43. 43When p - n junction diode is forward biased, then
  44. 44A p - n junction has acceptor impurity concentration of 10 17 c m - 3 in the p side and donor impurity concentration of 10 16 c m - 3 in the
  45. 45In the circuit of C E amplifier, a silicon transistor is used. The value of V CC = + 20 V , R L = 3 k Ω , collector voltage = 5 V , β = 100
  46. 46For a transistor, the current amplification factor α is 0 . 8 . If it is connected in common emitter configuration, the change in collector
  47. 47The current through the battery shown in the circuit is
  48. 48The current in the branch of a circuit shown below is
  49. 49For the circuit shown in the figure, determine the current through the Zener diode (Given: Zener diode is at break down voltage V z = 5.6 V
  50. 50A working transistor with its three legs marked P , Q and R is tested using a multimeter. No conduction is found between P and Q . By connec

Frequently Asked Questions

1.How many questions are available for Semiconductors?

This chapter includes 88 NTA Abhyas (JEE Main) questions.

2.Are these questions only from NTA Abhyas (JEE Main), or from other exams too?

These are NTA Abhyas (JEE Main) questions specifically for the Semiconductors chapter. Questions from other exams like JEE Main or JEE Advanced are organised separately under their respective exam sections.

3.What is the difficulty level of Semiconductors questions in NTA Abhyas (JEE Main)?

Of the 88 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2026 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.