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Previous year question hub

Alternating Current - Electricity - Physics Previous Year Questions

Practice Alternating Current - Electricity - Physics previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

10Papers
9Years
13Questions
1Topics

Alternating Current question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Alternating Current. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 14 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 14 100%

Subject weightage

Top subjects by unique question coverage.

Physics
13 Qs

Most asked topics

Top topics across the included previous year papers.

Electricity
13 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Alternating Current
13 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

WB JEE 2026
1 Qs
WB JEE 2026
1 Qs
WB JEE 2025
1 Qs
WB JEE 2024
2 Qs
WB JEE 2022
1 Qs
WB JEE 2021
2 Qs
WB JEE 2020
2 Qs
WB JEE 2019
2 Qs
WB JEE 2018
1 Qs
WB JEE 2017
1 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
WB JEE 202620261View paper
WB JEE 202620261View paper
WB JEE 202520251View paper
WB JEE 202420242View paper
WB JEE 202220221View paper
WB JEE 202120212View paper
WB JEE 202020202View paper
WB JEE 201920192View paper
WB JEE 201820181View paper
WB JEE 201720171View paper

All Alternating Current previous year questions

Practice every matching question in batches of 20, with every available option.

1
2017 · Physics · Electricity · Alternating Current
WB JEE 2017
When the frequency of the AC voltage applied to a series LCR circuit is gradually increased from a low value, the impedance of the circuit
A
monotonically increases
B
first increases and then decreases
C
first decreases and then increases
D
monotonically decreases
Open complete paper
2
2018 · Physics · Electricity · Alternating Current
WB JEE 2018
An alternating current is flowing through a series L-C-R circuit. It is found that the current reaches a value of 1 mA at both 200 Hz and 800 Hz frequency. What is the resonance frequency of the circuit?
A
600 Hz
B
300 Hz
C
500 Hz
D
400 Hz
Open complete paper
3
2019 · Physics · Electricity · Alternating Current
WB JEE 2019
When a 60 mH inductor and a resistor are connected in series with an AC voltage source, the voltage leads the current by 60\(^\circ\). If the inductor is replaced by a 0.5 \(\mu\)F capacitor, the voltage lags behind the current by 30\(^\circ\). What is the frequency of the AC supply?
A
\({1 \over {2\pi }} \times {10^4}Hz\)
B
\({1 \over {\pi }} \times {10^4}Hz\)
C
\({3 \over {2\pi }} \times {10^4}Hz\)
D
\({1 \over {2\pi }} \times {10^8}Hz\)
Open complete paper
4
2019 · Physics · Electricity · Alternating Current
WB JEE 2019
A parallel plate capacitor in series with a resistance of 100\(\Omega\), an inductor of 20 mH and an AC voltage source of variable frequency shows resonance at a frequency of \({{1250} \over \pi }\) Hz. If this capacitor is charged by a DC voltage source to a voltage 25 V, what amount of charge will be stored in each plate of the capacitor?
A
0.2 \(\mu\)C
B
2 mC
C
0.2 mC
D
0.2 C
Open complete paper
5
2020 · Physics · Electricity · Alternating Current
WB JEE 2020
WB JEE 2020 Physics - Alternating Current Question 13 English
When a DC voltage is applied at the two ends of a circuit kept in a closed box, it is observed that the current gradually increases from zero to a certain value and then remains constant. What do you think that the circuit contains?
A
A resistor alone
B
A capacitor alone
C
A resistor and an inductor in series
D
A resistor and a capacitor in series
Open complete paper
6
2020 · Physics · Electricity · Alternating Current
WB JEE 2020
A 400\(\Omega\) resistor, a 250 mH inductor and a 2.5 \(\mu\)F capacitor are connected in series with an AC source of peak voltage 5 V and angular frequency 2kHZ. What is the peak value of the electrostatic energy of the capacitor?
A
2\(\mu\)J
B
2.5\(\mu\)J
C
3.33\(\mu\)J
D
5\(\mu\)J
Open complete paper
7
2021 · Physics · Electricity · Alternating Current
WB JEE 2021
WB JEE 2021 Physics - Alternating Current Question 6 English
Consider a pure inductive AC circuit as shown in the figure. If the average power consumed is P, then
A
P > 0
B
P < 0
C
P = 0
D
P এর মান অসীম
Open complete paper
8
2021 · Physics · Electricity · Alternating Current
WB JEE 2021
WB JEE 2021 Physics - Alternating Current Question 7 English
The rms value of potential difference V shown in the figure is
A
\({{{V_0}} \over 2}\)
B
V0
C
\({{{V_0}} \over {\sqrt 3 }}\)
D
\({{{V_0}} \over {\sqrt 2 }}\)
Open complete paper
9
2022 · Physics · Electricity · Alternating Current
WB JEE 2022

When an AC source of emf E with frequency \(\omega\) = 100 Hz is connected across a circuit, the phase difference between E and current I in the circuit is observed to be \({\pi \over 4}\) as shown in the figure. If the circuit consist of only RC or RL in series, then

WB JEE 2022 Physics - Alternating Current Question 5 English

A
R = 1 k\(\Omega\), C = 5 \(\mu\)F
B
R = 1 k\(\Omega\), L = 10 H
C
R = 1 k\(\Omega\), L = 1 H
D
R = 1 k\(\Omega\), C = 10 \(\mu\)F
Open complete paper
10
2024 · Physics · Electricity · Alternating Current
WB JEE 2024

WB JEE 2024 Physics - Alternating Current Question 4 English

In a series LCR circuit, the rms voltage across the resistor and the capacitor are \(30 \mathrm{~V}\) and \(90 \mathrm{~V}\) respectively. If the applied voltage is \(50 \sqrt{2} \sin \omega t\), then the peak voltage across the inductor is

A
70 V
B
50 V
C
70\(\sqrt2\) V
D
50\(\sqrt2\) V
Open complete paper
11
2024 · Physics · Electricity · Alternating Current
WB JEE 2024

WB JEE 2024 Physics - Alternating Current Question 3 English

The variation of impedance \(\mathrm{Z}\) of a series \(\mathrm{L C R}\) circuit with frequency of the source is shown in the figure. Which of the following statement(s) is/are true ?

A
The impedance \(\mathrm{Z}\) is inductive in the portion \(\mathrm{AC}\)
B
The impedance \(\mathrm{Z}\) is capacitive in the portion \(\mathrm{BC}\)
C
The impedance \(\mathrm{Z}\) is inductive in the portion \(\mathrm{BC}\)
D
The impedance \(\mathrm{Z}\) is capacitive in the portion \(\mathrm{AC}\)
Open complete paper
12
2025 · Physics · Electricity · Alternating Current
WB JEE 2025
For a domestic AC supply of 220 V at 50 cycles per sec, the potential difference between the terminals of a two-pin electric outlet in a room is given by
A
$\mathrm{V}(\mathrm{t})=220 \sqrt{2} \operatorname{Cos}(100 \pi \mathrm{t})$
B
$V(t)=220 \operatorname{Sin}(50 t)$
C
$\mathrm{V}(\mathrm{t})=220 \operatorname{Cos}(100 \pi \mathrm{t})$
D
$\mathrm{V}(\mathrm{t})=220 \sqrt{2} \operatorname{Cos}(50 \mathrm{t})$
Open complete paper
13
2026 · Physics · Electricity · Alternating Current
WB JEE 2026

A resistor of resistance＇$R$＇draws power＇$P$＇when connected to an AC source．If an inductance is now placed in series with $R$ ，such that the impedance of the circuit becomes＇$Z$＇，the power drawn will be

A

$P\left(\frac{R}{Z}\right)$

B

$P\left(\frac{R}{Z}\right)^3$

C

$P\left(\frac{R}{Z}\right)^2$

D

$P \sqrt{\frac{Z}{R}}$

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