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Saturday, 31 October

JEE Main · Physics · Electrostatic Potential and Capacitance

Partial and Multiple Slabs

JEE Main asked Partial and Multiple Slabs 10 times in 10 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2024, 2025 and 2026. It belongs to Dielectrics, in Electrostatic Potential and Capacitance (Physics). The longest wait between two years asking it was 1 year. In 2021, 2022 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
10
in 10 shifts
Years
6 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, 2025 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170’200.07’210.10’220.07’230.09’240.13’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 in 24 shifts · 2022: 3 in 24 shifts · 2023: 1 in 12 shifts · 2024: 2 in 18 shifts · 2025: 1 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
  • 20251 of 8
  • 20242 of 18
  • 20231 of 12
  • 20223 of 24
  • 20212 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.

  • Capacitance change with partial dielectric slab
  • Equivalent capacitance with layered dielectrics

Difficulty

Easy 3Medium 6Hard 1

5 of the 10 questions had a numerical answer.

Every question

All 10 questions

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

  1. 2 Apr 2026, Shift 1 · Q32A parallel plate air capacitor has a capacitance C. When it is half filled as show in figure with a dielectric constant K=5K=5, the…EasySingle correctHas a figure
  2. 8 Apr 2025, Shift 2 · Q49Space between the plates of a parallel plate capacitor of plate area 4 cm2^2 and separation of (d) 1.77 mm, is filled with uniform…MediumNumerical valueHas a figure
  3. 8 Apr 2024, Shift 2 · Q40A capacitor has air as dielectric medium and two conducting plates of area 12 cm212\ \mathrm{cm}^2 and they are 0.60.6 cm apart. When a slab of…MediumSingle correct
  4. 6 Apr 2024, Shift 2 · Q52A capacitor of 10 μF10\ \mu\mathrm{F} capacitance whose plates are separated by 10 mm through air and each plate has area 4 cm24\ \mathrm{cm}^2…HardNumerical valueHas a figure
  5. 6 Apr 2023, Shift 1 · Q56A parallel plate capacitor with plate area A and plate separation d is filled with a dielectric material of dielectric constant K=4K=4. The…MediumNumerical valueHas a figure
  6. 30 Jun 2022, Shift 1 · Q40Co\mathrm{C_o} is the capacitance of a parallel plate capacitor with air as a medium between the plates (as shown in Fig. 1). If half…EasySingle correctHas a figure
  7. 28 Jul 2022, Shift 2 · Q9A slab of dielectric constant K has the same cross-sectional area as the plates of a parallel plate capacitor and thickness 34\frac{3}{4}…EasySingle correct
  8. 27 Jul 2022, Shift 2 · Q56A parallel plate capacitor with width 4 cm, length 8 cm and separation between the plates of 4 mm is connected to a battery of 20 V. A…MediumNumerical value
  9. 18 Mar 2021, Shift 1 · Q29A parallel plate capacitor has plate area 100 m2^2 and plate separation of 10 m. The space between the plates is filled up to a thickness…MediumNumerical value
  10. 26 Aug 2021, Shift 2 · Q18A parallel-plate capacitor with plate area A has separation d between the plates. Two dielectric slabs of dielectric constant…MediumDiagram basedHas a figure

Shifts: 18 Mar 2021, Shift 1, 26 Aug 2021, Shift 2, 30 Jun 2022, Shift 1, 27 Jul 2022, Shift 2, 28 Jul 2022, Shift 2, 6 Apr 2023, Shift 1, 6 Apr 2024, Shift 2, 8 Apr 2024, Shift 2, 8 Apr 2025, Shift 2, 2 Apr 2026, Shift 1.

Same topic

Other ideas in Dielectrics

Dielectrics has 9 ideas JEE Main has asked; 6 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas