Physics - Semiconductors
Practise 29 Manipal (MET) previous year questions on Semiconductors, compiled from papers spanning 2010 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 Manipal (MET) tests.
Semiconductors has been asked in 11 of the 15 years of Manipal (MET) papers analysed (2010–2024), with 29 questions in all. 83% of them were easy, 17% moderate and 0% tough. Most of its questions came from 2017, with 5 questions that year. In the last three years (2022–2024) it had 1 question across 1 paper, about 1 per paper.
The chapter's 5 topics are not weighted equally: Diodes (9 questions, 31%), Logic gates (7 questions, 24%), and Junction Transistors (6 questions, 21%) have been asked the most. Diodes has also led over the last five years, with 3 questions.
- 1In the circuit shown below, the diode has in forward bias resistance. When increases from 8 V to 12 V, then change in the current is found t2024Diodes
- 2The energy required to break the covalent bond in a semiconductor is2020Energy Bands in Solids
- 3The effect of reverse bias in a junction diode on its potential barrier is2020Diodes
- 4What is the current through the circuit and the pontential difference across the diode shown in figure. The drift current for the diode is .2020Diodes
- 5The valence band and conduction band of a solid overlap at low temperature, the solid may be2019Energy Bands in Solids
- 6The dominant contribution to current comes from holes in case of2019Semiconductors
- 7If no external voltage is applied across junction, there would be2019Diodes
- 8A transistor is used in common-emitter configuration. Given its , calculate the change in collector current when the base current changes by2018Junction Transistors
- 9- A semiconductor has an electron concentration of and hole concentration of . The semiconductor is2018Semiconductors
- 10In the figure shown below, which of the diodes are forward biased?2018Diodes
- 11The inputs and outputs for different time intervals are given below the NAND gate \( {array}{|l|l|l|l|} { Time } & { Inputs A } & { Inputs B2017Logic gates
- 12If and are the current gain in the and configurations respectively of the transistor circuit, then2017Junction Transistors
- 13A junction is designed to withstand current up to a maximum in 10 mA . A resistor is connected in series with it. When forward biased the di2017Diodes
- 14What is the Boolean equation for the figure?2017Logic gates
- 15When the inputs of a two input logic gate are 0 and 0 , the output is 1 . When the inputs are 1 and 0 the output is 0 . The logic gate is of2017Logic gates
- 16The combination of gates shown in the figure below produces2016Logic gates
- 17Two junction diodes one of germanium (Ge) and other of silicon (Si) are connected as shown in figure to a battery of emf 12 V and a load res2016Diodes
- 18The following configuration of gate is equivalent to2015Logic gates
- 19In the circuit diagram, the current through the Zener diode is2015Diodes
- 20The correct relation between and in a transistor is2013Junction Transistors
- 21Which of the following is unipoler transistor?2013Junction Transistors
- 22In the Boolean Algebra A B is same2013Logic gates
- 23The energy gap between the valence band and the conduction band for a material is 6 eV . The material is2012Semiconductors
- 24When the inputs of a two input logic gate are 0 and 0 , the output is 1 . When the inputs are 1 and 0 the output is 0 . The logic gate is of2012Logic gates
- 25If a transistor biased in the common-emitter mode, the emitter current is2012Junction Transistors
- 26The energy gap between the valence and conduction bands of an insulator is about2011Energy Bands in Solids
- 27For germanium crystal, the forbidden energy gap in joule is2011Energy Bands in Solids
- 28A transistor is working in common emitter mode. Its amplification factor is 80 . If the base current is , the collector current will be2010Junction Transistors
- 29The current in the circuit shown in the figure, considering ideal diode is2010Diodes
Frequently Asked Questions
1.How many questions are available for Semiconductors?
This chapter includes 29 questions compiled from Manipal (MET) papers spanning 2010 to 2024.
2.Are these questions only from Manipal (MET), or from other exams too?
These are Manipal (MET) 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 Manipal (MET) Physics?
Semiconductors has appeared in 11 of the 15 years of Manipal (MET) papers covered here, with 29 questions across 11 papers - about 3 per paper it appears in.
4.What is the difficulty level of Semiconductors questions in Manipal (MET)?
Of the 29 questions analysed for this chapter, 83% are easy, 17% moderate and 0% tough. 2017 had the most, with 5 questions.
5.Which topics in Semiconductors should I focus on?
These topics have carried the most weightage in Semiconductors:
- Diodes - 9 questions (31%)
- Logic gates - 7 questions (24%)
- Junction Transistors - 6 questions (21%)
6.Is Semiconductors's weightage in Manipal (MET) going up or down?
Across all 11 papers analysed, Semiconductors has averaged about 2.6 questions per paper. In the last three years (2022–2024), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.