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Saturday, 31 October

JEE Main · Physics · Mechanical Properties of Solids

Series and Parallel Composite Wires

JEE Main asked Series and Parallel Composite Wires 7 times in 7 of the 108 shifts Lumi analysed, in 2021, 2022, 2023 and 2026. It belongs to Elasticity, in Mechanical Properties of Solids (Physics). The longest wait between two years asking it was 3 years. In 2022 and 2026 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
2021
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2023 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.20.40’170’200.03’210.07’220.07’230’240’250.33’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 2 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 3 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20263 of 9
  • 20250 of 8
  • 20240 of 18
  • 20231 of 12
  • 20222 of 24
  • 20211 of 24
  • 20200 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.

  • Extension of series composite wires
  • Ratio of elongations of two strings

Difficulty

Easy 2Medium 5Hard 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. 6 Apr 2026, Shift 1 · Q34The two wires AA and BB of equal cross-section but of different materials are joined together. The ratio of Young's modulus of wire AA…EasySingle correct
  2. 4 Apr 2026, Shift 2 · Q31A metal string AA is suspended from a rigid support and its free end is attached to a block of mass MM. Second block having mass 2M2M is…MediumSingle correct
  3. 4 Apr 2026, Shift 1 · Q34A string AA of length 0.3140.314 m and Young's modulus 2×1010 N/m22\times10^{10}\ \mathrm{N/m^2} is connected to another string BB of length and…MediumSingle correct
  4. 10 Apr 2023, Shift 1 · Q51Two wires each of radius 0.2 cm and negligible mass, one made of steel and the other made of brass are loaded as shown in the figure. The…MediumNumerical valueHas a figure
  5. 30 Jul 2022, Shift 2 · Q6A block of mass M is attached to a wire. The upper part of wire is made of steel and lower part of wire of copper ( as shown in figure ).…EasySingle correctHas a figure
  6. 27 Jul 2022, Shift 2 · Q37A steel wire of length 3.2 m (Ys=2.0×1011Y_s=2.0\times10^{11} Nm−2^{-2}) and a copper wire of length 4.4 m (Yc=1.1×1011Y_c=1.1\times10^{11} Nm−2^{-2}), both…MediumSingle correct
  7. 25 Jul 2021, Shift 1 · Q18Two wires of same length and radius are joined end to end and loaded. The Young's modulii of the materials of the two wires are Y1Y_1 and…MediumSingle correct

Shifts: 25 Jul 2021, Shift 1, 27 Jul 2022, Shift 2, 30 Jul 2022, Shift 2, 10 Apr 2023, Shift 1, 4 Apr 2026, Shift 2, 4 Apr 2026, Shift 1, 6 Apr 2026, Shift 1.

Same topic

Other ideas in Elasticity

Elasticity has 19 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas