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Saturday, 31 October

JEE Main · Physics · Current Electricity

Identifying False Junctions

JEE Main asked Identifying False Junctions 2 times in 2 of the 108 shifts Lumi analysed, in 2020 and 2024. It belongs to Kirchhoff's Laws, in Current Electricity (Physics). The longest wait between two years asking it was 4 years.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2020
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

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

00.050.10’170.08’200’210’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 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
  • 20220 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

Diagram based is the usual form. Skill tested: multi-step.

  • Equivalent resistance of network with wires
  • Branch current in network with balanced bridge

Difficulty

Easy 0Medium 2Hard 0

Every question was multiple choice.

Every question

All 2 questions

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

  1. 9 Apr 2024, Shift 1 · Q41The equivalent resistance between A and B is :MediumSingle correctHas a figure
  2. 4 Sep 2020, Shift 2 · Q20The value of current i1i_1 flowing from A to C in the circuit diagram is :MediumDiagram basedHas a figure

Shifts: 4 Sep 2020, Shift 2, 9 Apr 2024, Shift 1.

Same topic

Other ideas in Kirchhoff's Laws

Kirchhoff's Laws has 22 ideas JEE Main has asked; 14 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas