Learn

Saturday, 31 October

JEE Main · Physics · Semiconductor Electronics: Materials, Devices and Simple Circuits

Zener Diode Power Dissipation Limits

JEE Main asked Zener Diode Power Dissipation Limits 5 times in 5 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2024 and 2026. It belongs to Semiconductor Diodes, in Semiconductor Electronics: Materials, Devices and Simple Circuits (Physics). The longest wait between two years asking it was 2 years.

Updated 2026-10-24

Times asked
5
in 5 shifts
Years
5 of 8
First asked
2021
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2023, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170’200.03’210.03’220.07’230.05’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 1 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20261 of 9
  • 20250 of 8
  • 20241 of 18
  • 20231 of 12
  • 20221 of 24
  • 20211 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Series resistance for zener diode
  • Series resistance for zener regulator

Difficulty

Easy 0Medium 5Hard 0

3 of the 5 questions had a numerical answer.

Every question

All 5 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 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
  2. 1 Feb 2024, Shift 1 · Q48In the given circuit if the power rating of Zener diode is 10 mW, the value of series resistance RsR_s to regulate the input unregulated…MediumSingle correctHas a figure
  3. 10 Apr 2023, Shift 1 · Q43A zener diode of power rating 1.6 W is to be used as voltage regulator. If the zener diode has a breakdown of 8 V and it has to regulate…MediumDiagram basedHas a figure
  4. 30 Jun 2022, Shift 1 · Q60The circuit diagram used to study the characteristic curve of a zener diode is connected to variable power supply (0−15 V) as shown in…MediumNumerical valueHas a figure
  5. 27 Aug 2021, Shift 2 · Q30A zener diode of power rating 2 W is to be used as a voltage regulator. If the zener diode has a breakdown of 10 V and it has to regulate…MediumNumerical valueHas a figure

Shifts: 27 Aug 2021, Shift 2, 30 Jun 2022, Shift 1, 10 Apr 2023, Shift 1, 1 Feb 2024, Shift 1, 4 Apr 2026, Shift 2.

Same topic

Other ideas in Semiconductor Diodes

Semiconductor Diodes has 17 ideas JEE Main has asked; 10 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas