JEE Main · Physics · Thermal Properties of Matter
Equivalent Thermal Conductivity in Series
JEE Main asked Equivalent Thermal Conductivity in Series once in the 108 shifts Lumi analysed, on 17 Mar 2021, Shift 1. It belongs to Heat Conduction, in Thermal Properties of Matter (Physics).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2021
- the only year
- Pattern
- Gone quiet
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2021. 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: 0 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
Single correct is the usual form. Skill tested: calculation.
- Effective conductivity of two rods in series
Difficulty
The question was multiple choice.
Every question
The question
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
Shift: 17 Mar 2021, Shift 1.
Same topic
Other ideas in Heat Conduction
Heat Conduction has 6 ideas JEE Main has asked; 1 of them came up in more than one question.
- Junction Temperature6× · 2025
- Equivalent Thermal Conductivity (Series)once · 2022
- Fourier's Law of Conductiononce · 2022
- Radial Conduction in Spherical Shellsonce · 2021
- Slabs in Seriesonce · 2020