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Saturday, 31 October

JEE Main · Physics · Current Electricity

Meter Bridge Principles

JEE Main asked Meter Bridge Principles 7 times in 7 of the 108 shifts Lumi analysed, in 2020, 2021, 2022 and 2024. It belongs to Wheatstone Bridge, in Current Electricity (Physics). The longest wait between two years asking it was 2 years. In 2022 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
7
in 7 shifts
Years
4 of 8
First asked
2020
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2022 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.050.10’170.08’200.03’210.10’220’230.09’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 1 in 24 shifts · 2022: 3 in 24 shifts · 2023: 0 in 12 shifts · 2024: 2 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
  • 20242 of 18
  • 20230 of 12
  • 20223 of 24
  • 20211 of 24
  • 20201 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.

  • Meter bridge balance after wire change
  • Balancing length after changing wire dimensions

Difficulty

Easy 3Medium 4Hard 0

5 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. 31 Jan 2024, Shift 2 · Q49The resistance per centimeter of a meter bridge wire is rr, with X ΩX\ \Omega resistance in left gap. Balancing length from left end is at…MediumSingle correct
  2. 1 Feb 2024, Shift 2 · Q50In a metre-bridge when a resistance in the left gap is 2 Ω2\,\Omega and unknown resistance in the right gap, the balance length is found to…MediumSingle correct
  3. 27 Jul 2022, Shift 2 · Q52In the given figure of meter bridge experiment, the balancing length AC corresponding to null deflection of the galvanometer is 40 cm. The…MediumNumerical valueHas a figure
  4. 27 Jul 2022, Shift 1 · Q51In a meter bridge experiment, for measuring unknown resistance 'S', the null point is obtained at a distance 30 cm from the left side as…EasyNumerical valueHas a figure
  5. 26 Jul 2022, Shift 1 · Q56Resistances are connected in a meter bridge circuit as shown in the figure. The balancing length l1l_1 is 40 cm. Now an unknown resistance…MediumNumerical valueHas a figure
  6. 18 Mar 2021, Shift 2 · Q26Consider a 72 cm long wire AB as shown in the figure. The galvanometer jockey is placed at P on AB at a distance xx cm from A. The…EasyNumerical valueHas a figure
  7. 9 Jan 2020, Shift 2 · Q23In a meter bridge experiment S is a standard resistance. R is a resistance wire. It is found that balancing length is l=25l = 25 cm. If R is…EasyNumerical valueHas a figure

Shifts: 9 Jan 2020, Shift 2, 18 Mar 2021, Shift 2, 26 Jul 2022, Shift 1, 27 Jul 2022, Shift 2, 27 Jul 2022, Shift 1, 31 Jan 2024, Shift 2, 1 Feb 2024, Shift 2.

Same topic

Other ideas in Wheatstone Bridge

Wheatstone Bridge has 12 ideas JEE Main has asked; 4 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas