Learn

Saturday, 31 October

JEE Main · Physics · Current Electricity

Cell EMF and Internal Resistance

JEE Main asked Cell EMF and Internal Resistance 10 times in 10 of the 108 shifts Lumi analysed, in 2020, 2021, 2022, 2023, 2024 and 2026. It belongs to Kirchhoff's Laws, in Current Electricity (Physics). The longest wait between two years asking it was 2 years. In 2021, 2022 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
10
in 10 shifts
Years
6 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, 2021, 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.

00.10.20’170.08’200.10’210.07’220.07’230.09’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 3 in 24 shifts · 2022: 2 in 24 shifts · 2023: 1 in 12 shifts · 2024: 2 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
  • 20242 of 18
  • 20231 of 12
  • 20222 of 24
  • 20213 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.

  • Internal resistance from two loads
  • Power in network with internal resistance

Difficulty

Easy 4Medium 6Hard 0

6 of the 10 questions had a numerical answer.

Every question

All 10 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 · Q49When an external resistance of 5 Ω\Omega is connected across terminals of a cell, a current of 0.25 A flows through it. When the 5…EasyNumerical value
  2. 31 Jan 2024, Shift 2 · Q56In the following circuit, the battery has an emf of 2V and an internal resistance of 23Ω\frac{2}{3}\Omega. The power consumption in the…MediumNumerical valueHas a figure
  3. 8 Apr 2024, Shift 1 · Q40In the given circuit, the terminal potential difference of the cell is :EasySingle correctHas a figure
  4. 11 Apr 2023, Shift 2 · Q59Two identical cells each of emf 1.5 V1.5\ \mathrm{V} are connected in series across a 10 Ω10\ \Omega resistance. An ideal voltmeter connected…MediumNumerical value
  5. 30 Jul 2022, Shift 2 · Q24A cell sends a current through a resistance 4 Ω for time t and sends current through another resistance 16 Ω for the same time t.If the…MediumNumerical value
  6. 27 Jul 2022, Shift 1 · Q41Two sources of equal emfs are connected in series. This combination is connected to an external resistance R. The internal resistances of…MediumSingle correct
  7. 17 Mar 2021, Shift 2 · Q2Two cells of emf 2E and E with internal resistance r1\mathrm{r_1} and r2\mathrm{r_2} respectively are connected in series to an external…MediumDiagram basedHas a figure
  8. 22 Jul 2021, Shift 2 · Q27In an electric circuit, a cell of certain emf provides a potential difference of 1.25 V across a load resistance of 5 Ω\Omega. However,…EasyNumerical value
  9. 27 Aug 2021, Shift 1 · Q26First, a set of n equal resistors of 10 Ω\Omega each are connected in series to a battery of emf 20 V and internal resistance 10…MediumNumerical value
  10. 4 Sep 2020, Shift 1 · Q12A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the terminal voltage of the battery is 2.5 V, the power…EasySingle correct

Shifts: 4 Sep 2020, Shift 1, 17 Mar 2021, Shift 2, 22 Jul 2021, Shift 2, 27 Aug 2021, Shift 1, 27 Jul 2022, Shift 1, 30 Jul 2022, Shift 2, 11 Apr 2023, Shift 2, 31 Jan 2024, Shift 2, 8 Apr 2024, Shift 1, 5 Apr 2026, Shift 2.

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