JEE Main Physics · Alternating Current

Phasor Diagrams in JEE Main

Name: Phasor Diagrams: JEE Main previous year questions
Creator: Lumi

Phasor Diagrams (Physics, Alternating Current) came 14 times in 13 of the 42 JEE Main shifts Lumi analysed, across 6 distinct ideas. 10 of them came in 2024–26; it was last asked in 2026.

Questions: 14; in 13 shifts
Ideas asked: 6; 3 asked more than once
Numerical answer: 6; 43% of its questions
Pattern: Asked most years; last asked 2026

Questions each year

In the shifts Lumi analysed for each year.

Difficulty and format

Easy 2Medium 10Hard 2

Format

Single correct7 Q
Numerical value6 Q
Two statements1 Q

Ideas inside the topic

6 ideas

Impedance Triangle Construction4 Q
Power Factor from Phasors4 Q
Phase Relations in RLC3 Q
Real Inductor (Choke Coil) Phasors1 Q
Phase Shifting Networks1 Q
RL Series Phasor Construction1 Q

Where it sits

Part of Alternating Current, which had 37 questions in all. Phasor Diagrams accounts for 38% of them. In Lumi's JEE taxonomy it belongs to EMI and Alternating Current.

Every question

All 14 Phasor Diagrams 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
6 Apr 2026, Shift 1 · Q45A LCR series circuit driven with $E_{rms}=90$ V at frequency $f_d=30$ Hz has resistance $R=80\ \Omega$ , an inductance with inductive…EasySingle correct
4 Apr 2025, Shift 2 · Q48An inductor of self inductance 1 H is connected in series with a resistor of $100\,\pi$ ohm and an ac supply of $100\,\pi$ volt, 50 Hz.…MediumNumerical value
7 Apr 2025, Shift 1 · Q49For ac circuit shown in figure, R = 100 k $\Omega$ and C = 100 pF and the phase difference between $\mathrm{V_{in}}$ and…HardNumerical valueHas a figure
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
9 Apr 2024, Shift 1 · Q58When a coil is connected across a $20$ V dc supply, it draws a current of $5$ A. When it is connected across $20$ V, $50$ Hz ac supply, it…MediumNumerical value
9 Apr 2024, Shift 2 · Q53A capacitor of reactance $4\sqrt{3}\ \Omega$ and a resistor of resistance $4\ \Omega$ are connected in series with an ac source of peak…MediumNumerical value
31 Jan 2024, Shift 2 · Q43An AC voltage $V=20\sin 200\pi t$ is applied to a series LCR circuit which drives a current $I=10\sin\left(200\pi t+\frac{\pi}{3}\right)$ .…EasySingle correct
13 Apr 2023, Shift 2 · Q44Given below are two statements: Statement I : An AC circuit undergoes electrical resonance if it contains either a capacitor or an…MediumTwo statements
28 Jul 2022, Shift 1 · Q44The equation of current in a purely inductive circuit is $5\sin(49\pi t-30^\circ)$ . If the inductance is 30 mH then the equation for the…MediumSingle correct
9 Jan 2020, Shift 2 · Q15In LC circuit the inductance $L = 40$ mH and capacitance $C = 100\ \mu$ F. If a voltage $V(t) = 10\sin(314\,t)$ is applied to the circuit,…MediumSingle correct
6 Sep 2020, Shift 2 · Q23In a series LR circuit, power of 400 W is dissipated from a source of 250 V, 50 Hz. The power factor of the circuit is 0.8. In order to…MediumNumerical value