Jump to a section

Physics - Semiconductors

Practise 53 VITEEE previous year questions on Semiconductors, compiled from papers spanning 2006 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty VITEEE tests.

Semiconductors has been asked in 17 of the 18 years of VITEEE papers analysed (2006–2024), with 53 questions in all. 49% of them were easy, 38% moderate and 13% tough. Most of its questions came from 2014, with 6 questions that year. In the last three years (2022–2024) it had 10 questions across 3 papers, about 3.3 per paper.

The chapter's 6 topics are not weighted equally: Diodes (19 questions, 36%), Logic gates (11 questions, 21%), and Semiconductors (9 questions, 17%) have been asked the most. Over the last five years the most frequent topics have been Logic gates (3), Energy Bands in Solids (2), and Rectifier (2). Diodes has produced the most tough questions (5).

  1. 1The output of the given arrangement of logic gates for and will be2024Logic gates
  2. 2A germanium crystal is doped with arsenic atoms and indium atoms simultaneously. Number of arsenic atoms used per and number of indium atoms2024Semiconductors
  3. 3What is the maximum wavelength of photon that would excite an electron in the valence band of diamond to the conduction band? The energy gap2023Energy Bands in Solids
  4. 4A p type semiconductor has acceptor levels 57 meV above the valance band. The maximum wavelength of light required to create hole is (Planck2023Energy Bands in Solids
  5. 5Intrinsic semiconductor is electrically neutral, extrinsic semiconductor having large number of current carriers would be:2023Semiconductors
  6. 6In a p-n junction diode acting as a half-waverectifier, which of the following statements is not true?2023Rectifier
  7. 7A transistor with \( =0.98\) is operated as an amplifier in a common base circuit with a load resistance of \(5 {k} \). If the dynamic resis2023Junction Transistors
  8. 8A Zener diode has a breakdown voltage of \(9.1 {~V}\) with a maximum power dissipation of \(364 {~mW}\). What is the maximum current that th2022Diodes
  9. 9The voltage across a diode in a full wave rectifier having input voltage of peak value \( {V}_{ {m}}\) during its non conducting period is2022Rectifier
  10. 10The diagram of a logic circuit is given below. The output \(F\) of the circuit is represented by2022Logic gates
  11. 11The following circuit represents2021Logic gates
  12. 12Which of the following gates will have an output of 1 ? (a) (b) (c) (d)2019Logic gates
  13. 13In a common base mode of a transistor, the collector current is for an emitter current of . The value of the base current amplification fact2019Junction Transistors
  14. 14In a common emitter transistor amplifier , and internal resistance of a transistor is . The voltage amplification of amplifier will be2018Junction Transistors
  15. 15The V-I characteristic of a diode is shown in the figure. The ratio of forward to reverse bias resistance is :2018Diodes
  16. 16The given electrical network is equivalent to :2018Logic gates
  17. 17Consider the junction diode as ideal. The value of current flowing through is2018Diodes
  18. 18The combination of gates shown below yields2017Logic gates
  19. 19Transfer characteristics [output voltage vs input voltage for a base biased transistor in CE configuration is as shown in the figure. For us2017Junction Transistors
  20. 20For what value of and , the output2016Logic gates
  21. 21An -type semiconductor is2015Semiconductors
  22. 22In the half wave rectifier circuit operating with mains frequency. The fundamental frequency in the ripple will be2015Rectifier
  23. 23The input resistance of a common emitter amplifier is and the load resistance is 5 . A change of base current is results in the change of co2015Junction Transistors
  24. 24To get an output from the circuit shown in the figure, the input must be2015Logic gates
  25. 25The amplification factor of a triode is 50 . If the grid potential is decreased by . What increase, in plate potential will keep the plate c2014Diodes
  26. 26Current in the circuit will be2014Diodes
  27. 27The output of the logic circuit shown in figure is best represented as2014Logic gates
  28. 28The resistance of a germanium junction diode whose is shown in figure is2014Diodes
  29. 29In a semiconductor, separation between conduction and valence band is of the order of2014Semiconductors
  30. 30A Zener diode, having breakdown voltage equal to is used in a voltage regulator circuit shown in figure. The current through the diode is2014Diodes
  31. 31Mobilities of electrons and holes in a sample of intrinsic germanium at room temperature are and . The electron and hole densities are each 2013Semiconductors
  32. 32To get an OR gate from a NAND gate, we need2013Logic gates
  33. 33For the given circuit of -n junction diode which of the following is correct2012Diodes
  34. 34In a common emitter amplifier the input signal is applied across2012Junction Transistors
  35. 35If in a triode value amplification factor is 20 and plate resistance is , then its mutual conductance is2012Diodes
  36. 36The output wave form offull-wave rectifier is2012Rectifier
  37. 37A transistor is operated in common emitter configuration at such that a change in the base current from to produces a change in the collecto2012Junction Transistors
  38. 38The electron of hydrogen atom is considered to be revolving round a proton in circular orbit of radius with velocity , where . The current i2010Diodes
  39. 39Which of the following rays is emitted by a human body?2010Semiconductors
  40. 40The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a satura2010Diodes
  41. 41Current flowing in each of the following circuit and respectively are2009Diodes
  42. 42A slit of width 'a' is illuminated with a monochromatic light of wavelength from a distant source and the diffraction pattern is observed on2008Diodes
  43. 43When a solid with a band gap has a donor level just below its empty energy band, the solid is2008Diodes
  44. 44A cylindrical capacitor has charge and length L. If both the charge and length of the capacitor are doubled, by keeping other parameters fix2008Diodes
  45. 45Identify the graph which correctly represents the Moseley's law2007Diodes
  46. 46Identify the logic gate from the following TRUTH table2007Logic gates
  47. 47The electric field intensity , due to an electric dipole of moment , at a point on the equatorial line is2007Diodes
  48. 48A conductor and a semi-conductor are connected in parallel as shown in the figure. At a certain voltage both ammeters registers the same cur2007Semiconductors
  49. 49When the conductivity of a semiconductor is only due to the breaking up of the covalent bonds, the semiconductor is known as2006Semiconductors
  50. 50In a P-type semiconductor, the acceptor impurity produces an energy level2006Semiconductors

Frequently Asked Questions

1.How many questions are available for Semiconductors?

This chapter includes 53 questions compiled from VITEEE papers spanning 2006 to 2024.

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

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

3.Is Semiconductors an important chapter for VITEEE Physics?

Semiconductors has appeared in 17 of the 18 years of VITEEE papers covered here, with 53 questions across 17 papers - about 3 per paper it appears in.

4.What is the difficulty level of Semiconductors questions in VITEEE?

Of the 53 questions analysed for this chapter, 49% are easy, 38% moderate and 13% tough. 2014 had the most, with 6 questions.

5.Which topics in Semiconductors should I focus on?

These topics have carried the most weightage in Semiconductors:

  • Diodes - 19 questions (36%)
  • Logic gates - 11 questions (21%)
  • Semiconductors - 9 questions (17%)
  • Diodes has produced the most tough questions (5).
6.Is Semiconductors's weightage in VITEEE going up or down?

Across all 17 papers analysed, Semiconductors has averaged about 3.1 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 3.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.