JEE Main · Physics · Units and Measurements
Dimensional Analysis of Permittivity
JEE Main asked Dimensional Analysis of Permittivity 3 times in 3 of the 108 shifts Lumi analysed, in 2023, 2024 and 2025. It belongs to Coulomb's Law, in Units and Measurements (Physics). The longest wait between two years asking it was 1 year.
Updated 2026-10-24
- Times asked
- 3
- in 3 shifts
- Years
- 3 of 8
- First asked
- 2023
- last in 2025
- Pattern
- Comes in cycles
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2023, 2024 and 2025. 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: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 in 18 shifts · 2025: 1 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
Single correct is the usual form. Skill tested: application.
- Dimension of physical quantity from formula
- Dimension of one over mu0 epsilon0
Difficulty
Every question was multiple choice.
Every question
All 3 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 2 Apr 2025, Shift 2 · Q35If and are the permeability and permittivity of free space, respectively, then the dimension of…EasySingle correct
- 8 Apr 2024, Shift 2 · Q31If is the permittivity of free space and E is the electric field, then has the dimensions :EasySingle correct
- 8 Apr 2023, Shift 1 · Q46Dimension of should be equal toEasySingle correct
Shifts: 8 Apr 2023, Shift 1, 8 Apr 2024, Shift 2, 2 Apr 2025, Shift 2.
Same topic
Other ideas in Coulomb's Law
Coulomb's Law has 15 ideas JEE Main has asked; 9 of them came up in more than one question. The 12 most asked are below.
- Superposition of Forces5× · 2023
- Charge Redistribution via Conduction3× · 2024
- Small Oscillations of a Displaced Charge3× · 2022
- Coulomb Force in Rutherford Scattering2× · 2026
- Suspended Charges Immersed in Liquid2× · 2024
- Charge Equilibrium Analysis2× · 2023
- Maximizing Force via Charge Division2× · 2023
- Suspended Charge Mechanics2× · 2021
- Vector Form of Coulomb Lawonce · 2026
- Distance of Closest Approachonce · 2024
- Electrostatic vs Gravitational Force Ratioonce · 2024
- Medium Dielectric Effectonce · 2024