Learn

Saturday, 31 October

JEE Main · Physics · Electrostatic Potential and Capacitance

Energy Stored in Capacitor

JEE Main asked Energy Stored in Capacitor 2 times in 2 of the 108 shifts Lumi analysed, in 2022 and 2026. It belongs to Parallel Plate Capacitors, in Electrostatic Potential and Capacitance (Physics). The longest wait between two years asking it was 4 years.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2022
last in 2026
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200’210.03’220’230’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 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
  • 20240 of 18
  • 20230 of 12
  • 20221 of 24
  • 20210 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: calculation.

  • Rate of change of capacitor energy with moving plate
  • Original charge from percentage energy change

Difficulty

Easy 1Medium 1Hard 0

Every question was multiple choice.

Every question

All 2 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 1 · Q40A parallel plate air capacitor is connected to a battery. The plates are pulled apart at uniform speed vv. If xx is the separation…MediumSingle correct
  2. 24 Jun 2022, Shift 2 · Q45If the charge on a capacitor is increased by 2 C, the energy stored in it increases by 44%. The original charge on the capacitor is (in C)EasySingle correct

Shifts: 24 Jun 2022, Shift 2, 4 Apr 2026, Shift 1.

Same topic

Other ideas in Parallel Plate Capacitors

Parallel Plate Capacitors has 14 ideas JEE Main has asked; 6 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas