Learn

Saturday, 31 October

JEE Main · Physics · Current Electricity

Unbalanced Bridge Analysis

JEE Main asked Unbalanced Bridge Analysis 4 times in 4 of the 108 shifts Lumi analysed, in 2020, 2021 and 2023. It belongs to Wheatstone Bridge, in Current Electricity (Physics). The longest wait between two years asking it was 2 years. In 2020 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
4
in 4 shifts
Years
3 of 8
First asked
2020
last in 2023
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021 and 2023. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170.17’200.03’210’220.07’230’240’250’26

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

  • 20260 of 9
  • 20250 of 8
  • 20240 of 18
  • 20231 of 12
  • 20220 of 24
  • 20211 of 24
  • 20202 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Diagram based is the usual form. Skill tested: calculation.

  • Potential difference across bridge nodes
  • Galvanometer current in unbalanced bridge

Difficulty

Easy 1Medium 2Hard 1

2 of the 4 questions had a numerical answer.

Every question

All 4 questions

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

  1. 15 Apr 2023, Shift 1 · Q60A network of four resistances is connected to 9 V battery, as shown in figure. The magnitude of voltage difference between the points A…MediumNumerical valueHas a figure
  2. 17 Mar 2021, Shift 2 · Q16The four arms of a Wheatstone bridge have resistances as shown in the figure. A galvanometer of 15 Ω\Omega resistance is connected across…HardDiagram basedHas a figure
  3. 4 Sep 2020, Shift 2 · Q23Four resistances 40 Ω\Omega, 60 Ω\Omega, 90 Ω\Omega and 110 Ω\Omega make the arms of a quadrilateral ABCD. Across AC is a battery of…EasyNumerical valueHas a figure
  4. 9 Jan 2020, Shift 1 · Q20In the given circuit diagram, a wire is joining points B and D. The current in this wire is :MediumDiagram basedHas a figure

Shifts: 9 Jan 2020, Shift 1, 4 Sep 2020, Shift 2, 17 Mar 2021, Shift 2, 15 Apr 2023, Shift 1.

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