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Saturday, 31 October

JEE Main · Physics · Units and Measurements

Error Analysis in Ohm's Law

JEE Main asked Error Analysis in Ohm's Law 7 times in 7 of the 108 shifts Lumi analysed, in 2020, 2022, 2023, 2024 and 2026. It belongs to Ohm's Law and Resistance, in Units and Measurements (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
7
in 7 shifts
Years
5 of 8
First asked
2020
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2022, 2023, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170.08’200’210.10’220.07’230.05’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 3 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20231 of 12
  • 20223 of 24
  • 20210 of 24
  • 20201 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.

  • Percentage error in derived quantity
  • Error in resistance from least counts

Difficulty

Easy 6Medium 1Hard 0

1 of the 7 questions had a numerical answer.

Every question

All 7 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 5 Apr 2026, Shift 2 · Q27In an experiment to determine the resistance of a given wire using Ohm's law, the voltmeter and ammeter readings are noted as 10 V and 5…EasySingle correct
  2. 29 Jan 2024, Shift 1 · Q31The resistance R=VIR=\frac{V}{I} where V=(200±5)V=(200\pm5) V and I=(20±0.2)I=(20\pm0.2) A, the percentage error in the measurement of R is :EasySingle correct
  3. 6 Apr 2023, Shift 1 · Q46Two resistances are given as R1=(10±0.5) ΩR_1=(10\pm0.5)\,\Omega and R2=(15±0.5) ΩR_2=(15\pm0.5)\,\Omega. The percentage error in the measurement of equivalent…MediumSingle correct
  4. 27 Jun 2022, Shift 1 · Q33A silver wire has a mass (0.6±0.006)(0.6\pm0.006) g, radius (0.5±0.005)(0.5\pm0.005) mm and length (4±0.04)(4\pm0.04) cm. The maximum percentage error in the…EasySingle correct
  5. 25 Jun 2022, Shift 2 · Q51For z=a2x3y12z =a^2x^3y^{\frac{1}{2}}, where ‘aa’ is a constant. If percentage error in measurement of ‘xx’ and ‘yy’ are 4% and 12%,…EasyNumerical value
  6. 25 Jul 2022, Shift 2 · Q49The maximum error in the measurement of resistance, current and time for which current flows in an electrical circuit are 1%, 2% and 3%…EasySingle correct
  7. 5 Sep 2020, Shift 1 · Q1A physical quantity zz depends on four observables a, b, c and d, as z=a2b23c d3z = \frac{a^2 b^{\frac{2}{3}}}{\sqrt{c}\, d^3}. The percentages of…EasySingle correct

Shifts: 5 Sep 2020, Shift 1, 25 Jun 2022, Shift 2, 27 Jun 2022, Shift 1, 25 Jul 2022, Shift 2, 6 Apr 2023, Shift 1, 29 Jan 2024, Shift 1, 5 Apr 2026, Shift 2.

Same topic

Other ideas in Ohm's Law and Resistance

Ohm's Law and Resistance has 21 ideas JEE Main has asked; 12 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas