JEE Main Physics · Alternating Current

Impedance Triangle Construction

Impedance Triangle Construction (Alternating Current) was asked 4 times in 4 JEE Main shifts, 2024–2026, out of the 42 shifts Lumi analysed. 1 of the 4 had a numerical answer.

Times asked: 4; in 4 shifts
Years: 2024–2026
Usual format: Single correct; Multi-step
Pattern: New since 2024; repeats across shifts

How it is asked

Inductance from given phase angles
Reactance difference from power factor

Difficulty

Easy 0Medium 3Hard 1

Where it sits

Chapter: Alternating Current. Topic: Phasor Diagrams, 14 questions over 6 ideas.

All 4 questions

Newest first, each with its options and official answer.

2 Apr 2026, Shift 2 · Q42The figure given below shows an LCR series circuit with two switches $S_1$ and $S_2$ . When switch $S_1$ is closed keeping $S_2$ open, the…HardSingle correctHas a figure
4 Apr 2026, Shift 1 · Q50An inductor of $10$ mH, capacitor of $0.1\ \mu$ F and a resistor of $100\ \Omega$ are connected in series across an $a.c$ power supply…MediumNumerical value
5 Apr 2026, Shift 1 · Q44An a.c. source of angular frequency $\omega$ is connected across a resistor $R$ and a capacitor $C$ in series. The current is observed as…MediumSingle correct
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