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Saturday, 10 October

JEE Main Physics · Class 12

Semiconductor Electronics: Materials, Devices and Simple Circuits: JEE Main previous year questions

Semiconductor Electronics: Materials, Devices and Simple Circuits had 46 questions in the 42 JEE Main shifts Lumi analysed, about 1.0 a shift, asked in 41 of 42 shifts. It ranks 8 of 29 Physics chapters by questions; 0% of its questions were hard.

Questions
46
in 41 of 42 shifts
A shift, on average
1.0
of 25 Physics questions
Since 2024
+0.1
1.0 a shift in 2017–23, 1.0 in 2024–26
Numerical answer
7
15% of its questions

Year by year

How often it came

Questions in the analysed shifts of each year. Years differ in how many shifts Lumi analysed, so read the bars with the shift count.

Questions each year
05101’174’204’215’225’239’248’2510’26

2017: 1 shifts · 2020: 4 shifts · 2021: 4 shifts · 2022: 4 shifts · 2023: 4 shifts · 2024: 8 shifts · 2025: 8 shifts · 2026: 9 shifts

Difficulty by year
  • 20171
  • 20204
  • 20214
  • 20225
  • 20235
  • 20249
  • 20258
  • 202610
  • Easy
  • Medium
  • Hard

Inside the chapter

Topics and the ideas that repeat

4 topics and 21 distinct ideas; 5 ideas were asked more than once. Most questions are diagram based and diagram reading.

Topics, by questions

3 questions had no close topic in our taxonomy and are counted for the chapter only.

Ideas asked most
5 repeat

Study it on Lumi

Semiconductor Electronics: Materials, Devices and Simple Circuits: the interactive lesson

Every question

All 46 Semiconductor Electronics: Materials, Devices and Simple Circuits questions

Newest first. Each opens with its options and the official answer.

2026 10 questions

  1. 2 Apr 2026, Shift 1 · Q37For the given circuit (shown in part (A)) the time dependent input voltage vin(t)v_{in}(t) and corresponding output vo(t)v_o(t) are shown in part…MediumDiagram basedHas a figure
  2. 2 Apr 2026, Shift 2 · Q30If X and Y are the inputs, the given circuit works asMediumDiagram basedHas a figure
  3. 4 Apr 2026, Shift 1 · Q38Two 44 bits binary numbers, A=1101A=1101 and B=1010B=1010 are given in the inputs of a logic circuit shown in figure below. The output (YY) will…EasyDiagram basedHas a figure
  4. 4 Apr 2026, Shift 2 · Q45Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: A diode under…MediumAssertion–reason
  5. 4 Apr 2026, Shift 2 · Q46A diode has Zener voltage of 10 V and maximum power dissipation of 0.5 W, then the minimum resistance to be used in series with this diode…MediumNumerical value
  6. 5 Apr 2026, Shift 1 · Q45For the given logic circuit, which of the following inputs combination will make both LED-1 and LED-2 to glow?EasyDiagram basedHas a figure
  7. 5 Apr 2026, Shift 2 · Q45In a semiconductor p-n diode, the doping concentrations on p-side and n-side are 101510^{15} atoms/cm3^3 and 101810^{18} atoms/cm3^3,…MediumSingle correct
  8. 6 Apr 2026, Shift 1 · Q39The maximum rated power of the LED is 2 mW and it is used in the circuit with input voltage of 5 V as shown in the figure below. The…MediumSingle correctHas a figure
  9. 6 Apr 2026, Shift 2 · Q43Refer to the logic circuit given below. For two inputs (A=1A=1, B=1B=1) and (A=0A=0, B=1B=1), output (YY) will be __________.EasyDiagram basedHas a figure
  10. 8 Apr 2026, Shift 2 · Q45The output YY for the given inputs AA and BB to the circuit is :MediumDiagram basedHas a figure

2025 8 questions

  1. 2 Apr 2025, Shift 1 · Q45A zener diode with 5 V zener voltage is used to regulate an unregulated dc voltage input of 25 V. For a 400 Ω400\ \Omega resistor connected…MediumSingle correct
  2. 2 Apr 2025, Shift 2 · Q39In the digital circuit shown in the figure, for the given inputs the P and Q values are :MediumDiagram basedHas a figure
  3. 3 Apr 2025, Shift 1 · Q45Choose the correct logic circuit for the given truth table having inputs A and B. Inputs A, B / Output Y: A=0,B=0: Y=0 A=0,B=1: Y=0…MediumDiagram basedHas a figure
  4. 3 Apr 2025, Shift 2 · Q45The truth table corresponding to the circuit given below is :EasyDiagram basedHas a figure
  5. 4 Apr 2025, Shift 2 · Q43Consider a n-type semiconductor in which nen_e and nhn_h are number of electrons and holes, respectively. (A) Holes are minority carriers…EasyOther
  6. 7 Apr 2025, Shift 1 · Q45In the following circuit, the reading of the ammeter will be (Take Zener breakdown voltage = 4 V)MediumDiagram basedHas a figure
  7. 7 Apr 2025, Shift 2 · Q45Consider the following logic circuit. The output is Y=0Y=0 when :EasyDiagram basedHas a figure
  8. 8 Apr 2025, Shift 2 · Q45The output voltage in the following circuit is (Consider ideal diode case)MediumDiagram basedHas a figure

2024 9 questions

  1. 6 Apr 2024, Shift 2 · Q49The acceptor level of a p-type semiconductor is 6 eV. The maximum wavelength of light which can create a hole would be : Given…MediumSingle correct
  2. 8 Apr 2024, Shift 1 · Q47The output Y of following circuit for given inputs is :MediumDiagram basedHas a figure
  3. 9 Apr 2024, Shift 1 · Q48A light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is 1.421.42 eV. The wavelength of light emitted…EasySingle correct
  4. 9 Apr 2024, Shift 2 · Q48In the truth table of the above circuit the value of X and Y are :MediumSingle correctHas a figure
  5. 9 Apr 2024, Shift 2 · Q49The II-VV characteristics of an electronic device shown in the figure. The device is :EasySingle correctHas a figure
  6. 29 Jan 2024, Shift 1 · Q48In the given circuit, the breakdown voltage of the Zener diode is 3.0 V. What is the value of IzI_z?MediumDiagram basedHas a figure
  7. 30 Jan 2024, Shift 2 · Q49In the given circuit, the voltage across load resistance (RLR_L) is:MediumDiagram basedHas a figure
  8. 31 Jan 2024, Shift 1 · Q48Identify the logic operation performed by the given circuit.EasySingle correctHas a figure
  9. 31 Jan 2024, Shift 2 · Q48The output of the given circuit diagram is -MediumDiagram basedHas a figure

2023 5 questions

  1. 6 Apr 2023, Shift 1 · Q32Name the logic gate equivalent to the diagram attachedEasyDiagram basedHas a figure
  2. 6 Apr 2023, Shift 1 · Q41The resistivity (ρ\rho) of semiconductor varies with temperature. Which of the following curve represents the correct behaviourEasyDiagram basedHas a figure
  3. 8 Apr 2023, Shift 2 · Q43For a given transistor amplifier circuit in CE configuration VCC=1V_{CC} = 1 V, RC=1R_C = 1 kΩ\Omega, Rb=100R_b = 100 kΩ\Omega and β=100\beta = 100.…EasySingle correctHas a figure
  4. 11 Apr 2023, Shift 1 · Q32The logic performed by the circuit shown in figure is equivalent to :EasyDiagram basedHas a figure
  5. 13 Apr 2023, Shift 2 · Q49The output from a NAND gate having inputs A and B given below will be,MediumDiagram basedHas a figure

2022 5 questions

  1. 25 Jul 2022, Shift 1 · Q50In the circuit, the logical value of A=1A=1 or B=1B=1 when potential at A or B is 55 V and the logical value of A=0A=0 or B=0B=0 when…MediumDiagram basedHas a figure
  2. 25 Jul 2022, Shift 1 · Q59The energy band gap of semiconducting material to produce violet (wavelength =4000=4000 Å) LED is ______ eV. (Round off to the nearest…EasyNumerical value
  3. 28 Jul 2022, Shift 1 · Q49Identify the solar cell characteristics from the following options :EasyDiagram basedHas a figure
  4. 24 Jun 2022, Shift 1 · Q53A transistor is used in common-emitter mode in an amplifier circuit. When a signal of 10 mV is added to the base-emitter voltage, the base…EasyNumerical value
  5. 29 Jun 2022, Shift 1 · Q58A transistor is used in an amplifier circuit in common emitter mode. If the base current changes by 100 μ\muA, it brings a change of 10…EasyNumerical value

2021 4 questions

  1. 3 Aug 2021, Shift 2 · Q17Identify the resulting gate for the following circuit.MediumSingle correctHas a figure
  2. 25 Jul 2021, Shift 1 · Q12Identify the logic operation carried out.EasyDiagram basedHas a figure
  3. 16 Mar 2021, Shift 2 · Q20The following logic gate is equivalent to :MediumDiagram basedHas a figure
  4. 18 Mar 2021, Shift 1 · Q21An npn transistor operates as a common emitter amplifier with a power gain of 10610^6. The input circuit resistance is 100 Ω\Omega and the…MediumNumerical value

2020 4 questions

  1. 8 Jan 2020, Shift 1 · Q19Boolean relation at the output stage-Y for the following circuit is :MediumSingle correctHas a figure
  2. 9 Jan 2020, Shift 2 · Q20The current ii in the network is :MediumSingle correctHas a figure
  3. 9 Jan 2020, Shift 2 · Q25The circuit shown below is working as a 8 V dc regulated voltage source. When 12 V is used as input, the power dissipated (in mW) in each…MediumNumerical valueHas a figure
  4. 6 Sep 2020, Shift 2 · Q25The output characteristics of a transistor is shown in the figure. When VCEV_{CE} is 10 V and IC=4.0I_C = 4.0 mA, then value of βac\beta_{ac} is…MediumNumerical valueHas a figure

2017 1 questions

  1. 2 Apr 2017 (offline) · Q27In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be :EasySingle correct

Pattern: Asked most years.