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Saturday, 31 October

JEE Main · Physics · Current Electricity

Internal Resistance Measurement

JEE Main asked Internal Resistance Measurement 3 times in 3 of the 108 shifts Lumi analysed, in 2022 and 2024. It belongs to Potentiometer, in Current Electricity (Physics). The longest wait between two years asking it was 2 years. In 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
2 of 8
First asked
2022
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2022 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.050.10’170’200’210.07’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 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.

  • 20260 of 9
  • 20250 of 8
  • 20241 of 18
  • 20230 of 12
  • 20222 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

Numerical value is the usual form. Skill tested: calculation.

  • Internal resistance by potentiometer
  • Internal resistance using potentiometer null points

Difficulty

Easy 0Medium 3Hard 0

2 of the 3 questions had a numerical answer.

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.

  1. 4 Apr 2024, Shift 1 · Q50To measure the internal resistance of a battery, potentiometer is used. For R=10 ΩR = 10\ \Omega, the balance point is observed at l=500l = 500…MediumSingle correct
  2. 30 Jun 2022, Shift 1 · Q56The circuit diagram of potentiometer used to measure the internal resistance of a cell (E) is shown in figure. The key ‘K’ is kept closed…MediumNumerical valueHas a figure
  3. 27 Jun 2022, Shift 1 · Q55A cell, shunted by a 8 Ω8\ \Omega resistance, is balanced across a potentiometer wire of length 3 m. The balancing length is 2 m when the…MediumNumerical value

Shifts: 27 Jun 2022, Shift 1, 30 Jun 2022, Shift 1, 4 Apr 2024, Shift 1.

Same topic

Other ideas in Potentiometer

Potentiometer has 4 ideas JEE Main has asked; 3 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas