Alternating Current PYQs - Last 10 Years

NEET / Physics / Electricity / 32 recent questions

PhysicsElectricity2017-2026

All Alternating Current PYQs Last 5 Years Create chapter test

Practice 32 NEET Physics questions from Alternating Current. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

32

PYQs on Page

Physics / Electricity

2017-2026

Year Range

Based on indexed question metadata

23

Last 5 Years

2022-2026

32

Last 10 Years

2017-2026

Recent Year Trend

2021

2022

2023

2024

2025

2026

20219 max PYQs/year2026

Question Types

32PYQs

MCQ100%

Difficulty Mix

#1 Unknown29

#2 Easy3

23 in last 5 years32 in last 10 years

Last 10 Years Alternating Current Questions

Showing 32 of 32 filtered questions.

1Alternating Current

An ac voltage $V=220 \sin \left(2 \times 10^3 t\right)$ Volt is applied to a series LCR circuit. Then the current amplitude in this circuit is:
(Given : $L=10 \mathrm{mH}, C=25 \mu \mathrm{~F}, R=100 \Omega$ )

2Alternating Current

The peak value of an alternating current is 5 A and frequency is 60 Hz . How long will the current, starting from zero, take to reach the peak value?

3Alternating Current

An ac circuit contains a resistance of $1 \mathrm{k} \Omega$, a capacitor of $0.1 \mu \mathrm{~F}$ and an inductor of 1 mH connected in series. The resonance frequency of the circuit is approximately:

4Alternating Current

To an ac power supply of 220 V at 50 Hz , a resistor of $20 \Omega$, a capacitor of reactance $25 \Omega$ and an inductor of reactance $45 \Omega$ are connected in series. The corresponding current in the circuit and the phase angle between...

5Alternating Current

In the circuit shown below, the inductance \(L\) is connected to an ac source. The current flowing in the circuit is \(I=I_0 \sin \omega t\). The voltage drop \(\left(V_L\right)\) across \(L\) is

6Alternating Current

The amplitude of the charge oscillating in a circuit decreases exponentially as \(Q=Q_0 e^{-R t/2 L}\), where \(Q_0\) is the charge at \(t=0 \mathrm{~s}\). The time at which charge amplitude decreases to \(0.50 Q_0\) is nearly:
[Given that ...

7Alternating Current

A step up transformer is connected to an ac mains supply of \(220 \mathrm{~V}\) to operate at \(11000 \mathrm{~V}, 88\) watt. The current in the secondary circuit, ignoring the power loss in the transformer, is

8Alternating Current

A \(10 \mu \mathrm{F}\) capacitor is connected to a \(210 \mathrm{~V}, 50 \mathrm{~Hz}\) source as shown in figure. The peak current in the circuit is nearly \((\pi=3.14)\) :

9Alternating Current

In an ideal transformer, the turns ratio is \(\frac{N_P}{N_S}=\frac{1}{2}\). The ratio \(V_S: V_P\) is equal to (the symbols carry their usual meaning) :

10Alternating Current

For very high frequencies, the effective impedance of the circuit (shown in the figure) will be:-

11Alternating Current

The maximum power is dissipated for an ac in a/an:

12Alternating Current

If Z\(_1\) and Z\(_2\) are the impedances of the given circuits (a) and (b) as shown in figures, then choose the correct option

13Alternating Current

An ac source is connected in the given circuit. The value of $\phi$ will be :

14Alternating Current

The net impedance of circuit (as shown in figure) will be :

15Alternating Current

The magnetic energy stored in an inductor of inductance \(4 ~\mu \mathrm{H}\) carrying a current of \(2 \mathrm{~A}\) is :

16Alternating Current

An ac source is connected to a capacitor C. Due to decrease in its operating frequency

17Alternating Current

A \(12 \mathrm{~V}, 60 \mathrm{~W}\) lamp is connected to the secondary of a step down transformer, whose primary is connected to ac mains of \(220 \mathrm{~V}\). Assuming the transformer to be ideal, what is the current in the primary wind...

18Alternating Current

In a series LCR circuit, the inductance \(L\) is \(10 ~\mathrm{mH}\), capacitance \(C\) is \(1 ~\mu \mathrm{F}\) and resistance \(R\) is \(100 ~\Omega\). The frequency at which resonance occurs is :-

19Alternating Current

A standard filament lamp consumes 100 W when connected to 200 V ac mains supply. The peak current through the bulb will be :

20Alternating Current

An inductor of inductance 2 mH is connected to a 220 V, 50 Hz ac source. Let the inductive reactance in the circuit is X1. If a 220 V dc source replace the ac source in the circuit, then the inductive reactance in the circuit is X2. X1 and ...

21Alternating Current

Given below are two statements
Statement I : In an a.c circuit, the current through a capacitor leads the voltage across it.
Statement II : In a.c circuit containing pure capacitance only, the phase difference between the current and voltag...

22Alternating Current

A series LCR circuit with inductance 10 H, capacitance 10 \(\mu\)F, resistance 50 \(\Omega\) is connected to an ac source of voltage, V = 200sin(100t) volt. If the resonant frequency of the LCR circuit is v0 and the frequency of the ac sour...

23Alternating Current

The peak voltage of the ac source is equal to

24Alternating Current

A series LCR circuit containing 5.0 H inductor, 80\(\mu\)F capacitor and 40\(\Omega\) resistor is connected to 230V variable frequency ac source. The angular frequencies of the source at which power transferred to the circuit is half the po...

25Alternating Current

A step down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit ?

26Alternating Current

A capacitor of capacitance 'C', is connected across an ac source of voltage V, given by V = V0sin\(\omega\)tThe displacement current between the plates of the capacitor, would then be given by :

27Alternating Current

An inductor of inductance L, a capacitor of capacitance C and a resistor of resistance 'R' are connected in series to an ac source of potential difference 'V' volts as shown in figure. Potential difference across L, C and R is 40V, 10V and ...

28Alternating Current

A series LCR circuit is connected to an ac voltage source. When L is removed from the circuit, the phase difference between current and voltage is \({\pi \over 3}\). If instead C is
removed from the circuit, the phase difference is again $...

29Alternating Current

A 40 \(\mu\)F capacitor is connected to a 200 V. 50 Hz ac supply. The rms value of the current on the circuit is, nearly :

30Alternating Current

An inductor 20 mH, a capacitor 100 \(\mu\)F and
a resistor 50 \(\Omega\) are connected in series across
a source of emf, V = 10 sin 314 t. The power
loss in the circuit is

31Alternating Current

The magnetic potential energy stored in a
certain inductor is 25 mJ, when the current
in the inductor is 60 mA. This inductor is of
inductance

32Alternating Current

Figure shows a circuit that contains three identical resistors with resistance R = 9.0 \(\Omega\) each, two identical inductors with inductance \(L\) = 2.0 mH each, and an ideal battery with emf \(\varepsilon = 18V\). The current \(i\) th...