JEE Main · Physics · Electrostatic Potential and Capacitance
Self-Energy of a Spherical Shell
JEE Main asked Self-Energy of a Spherical Shell 2 times in 2 of the 108 shifts Lumi analysed, in 2021 and 2022. It belongs to Electric Potential, in Electrostatic Potential and Capacitance (Physics). The longest wait between two years asking it was 1 year.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2021
- last in 2022
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021 and 2022. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Numerical value is the usual form. Skill tested: multi-step.
- Energy of drop formed by merging charged drops
- Energy ratio when charged drops coalesce
Difficulty
2 of the 2 questions had a numerical answer.
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.
- 30 Jun 2022, Shift 1 · Q55Eight similar drops of mercury are maintained at 12 V each. All these spherical drops combine into a single big drop. The potential energy…MediumNumerical value
- 26 Feb 2021, Shift 2 · Q3027 similar drops of mercury are maintained at 10 V each. All these spherical drops combine into a single big drop. The potential energy of…HardNumerical value
Shifts: 26 Feb 2021, Shift 2, 30 Jun 2022, Shift 1.
Same topic
Other ideas in Electric Potential
Electric Potential has 16 ideas JEE Main has asked; 7 of them came up in more than one question. The 12 most asked are below.
- Potential of a Spherical Shell4× · 2025
- Work Done in Field4× · 2025
- Field-Potential Relation3× · 2026
- Point Charge Potential3× · 2024
- Potential of a Solid Non-Conducting Sphere2× · 2021
- Potential of Concentric Spherical Shells2× · 2020
- Heat Loss During Charge Sharingonce · 2026
- Equipotential Planes of Uniform Fieldonce · 2025
- Electric Potential of a Dipoleonce · 2024
- Potential of a Semi-Circular Ringonce · 2024
- V-r Graphs for Spherical Geometriesonce · 2023
- Charge Sharing Between Conductorsonce · 2022