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Saturday, 31 October

JEE Main · Physics · Alternating Current

Impedance Triangle Construction

JEE Main asked Impedance Triangle Construction 9 times in 9 of the 108 shifts Lumi analysed, in 2020, 2022, 2024 and 2026. It belongs to Phasor Diagrams, in Alternating Current (Physics). The longest wait between two years asking it was 2 years. In 2022, 2024 and 2026 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
9
in 9 shifts
Years
4 of 8
First asked
2020
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

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

00.20.40’170.08’200’210.10’220’230.09’240’250.33’26

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

Single correct is the usual form. Skill tested: calculation.

  • Inductance from given phase angles
  • Reactance difference from power factor

Difficulty

Easy 0Medium 8Hard 1

3 of the 9 questions had a numerical answer.

Every question

All 9 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 1 · Q44An a.c. source of angular frequency ω\omega is connected across a resistor RR and a capacitor CC in series. The current is observed as…MediumSingle correct
  2. 4 Apr 2026, Shift 1 · Q50An inductor of 1010 mH, capacitor of 0.1 μ0.1\ \muF and a resistor of 100 Ω100\ \Omega are connected in series across an a.ca.c power supply…MediumNumerical value
  3. 2 Apr 2026, Shift 2 · Q42The figure given below shows an LCR series circuit with two switches S1S_1 and S2S_2. When switch S1S_1 is closed keeping S2S_2 open, the…HardSingle correctHas a figure
  4. 9 Apr 2024, Shift 1 · Q43A bulb and a capacitor are connected in series across an ac supply. A dielectric is then placed between the plates of the capacitor. The…MediumSingle correct
  5. 5 Apr 2024, Shift 1 · Q57An ac source is connected in given series LCR circuit. The rms potential difference across the capacitor of 20 μF20\ \mu\mathrm{F} is…MediumNumerical valueHas a figure
  6. 28 Jun 2022, Shift 1 · Q54An AC source is connected to an inductance of 100 mH, a capacitance of 100 μ\mu F and a resistance of 120 Ω\Omega as shown in figure.…MediumNumerical valueHas a figure
  7. 25 Jun 2022, Shift 2 · Q42A sinusoidal voltage V(t)V(t) = 210 sin 3000 tt volt is applied to a series LCR circuit in which LL = 10 mHmH, CC =25 µFF and RR = 100…MediumSingle correct
  8. 27 Jul 2022, Shift 2 · Q44A series LCR circuit has L = 0.01 H, R = 10 Ω\Omega and C = 1 μ\muF and it is connected to ac voltage of amplitude (Vm\mathrm{V_m}) 50…MediumSingle correct
  9. 3 Sep 2020, Shift 1 · Q15A 750 Hz, 20 V (rms) source is connected to a resistance of 100 Ω\Omega, an inductance of 0.1803 H and a capacitance of 10 μ\muF all in…MediumSingle correct

Shifts: 3 Sep 2020, Shift 1, 25 Jun 2022, Shift 2, 28 Jun 2022, Shift 1, 27 Jul 2022, Shift 2, 5 Apr 2024, Shift 1, 9 Apr 2024, Shift 1, 2 Apr 2026, Shift 2, 4 Apr 2026, Shift 1, 5 Apr 2026, Shift 1.

Same topic

Other ideas in Phasor Diagrams

Phasor Diagrams has 13 ideas JEE Main has asked; 7 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas