Alternating Current PYQs - Last 5 Years

MHT CET / Physics / Electromagnetism / 195 recent questions

PhysicsElectromagnetism2022-2026

All Alternating Current PYQs Last 10 Years Create chapter test

Practice 195 MHT CET Physics questions from Alternating Current. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

195

PYQs on Page

Physics / Electromagnetism

2022-2026

Year Range

Based on indexed question metadata

195

Last 5 Years

2022-2026

195

Last 10 Years

2017-2026

Recent Year Trend

2022

2023

2024

2025

2026

202254 max PYQs/year2026

Question Types

195PYQs

MCQ100%

Difficulty Mix

#1 Unknown195

195 in last 5 years195 in last 10 years

Last 5 Years Alternating Current Questions

Showing 45 of 195 filtered questions.

1Alternating Current

For the series $L C R$ circuit, $R=\frac{X_L}{2}=2 \mathrm{X}_{\mathrm{c}}$. The impedance of the circuit and the phase difference between V and I will be

2Alternating Current

In series LCR circuit, 'R' represents resistance of electric bulb. If the frequency of a.c. supply is doubled, the value of inductance ' $L$ ' and capacitance 'C' should be

3Alternating Current

An a.c. voltage source $\mathrm{V}=\mathrm{V}_0 \sin \omega \mathrm{t}$ is connected across resistance ' $R$ ' and capacitance ' $C$ ' in series. It is given that $R=\frac{1}{\omega c}$ and the peak current is $\mathrm{I}_0$. If the angular...

4Alternating Current

In an \(\mathrm{AC}\) circuit, the current is \(\mathrm{i}=5 \sin \left(100 \mathrm{t}-\frac{\pi}{2}\right) \mathrm{A}\) and voltage is \(\mathrm{e}=200 \sin (100 \mathrm{t})\) volt. Power consumption in the circuit is $$\left(\cos 90^{\cir...

5Alternating Current

A capacitor, an inductor and an electric bulb are connected in series to an a.c. supply of variable frequency. As the frequency of the supply is increased gradually, then the electric bulb is found to

6Alternating Current

The coil of an a.c. generator has 100 turns, each of cross-sectional area \(2 \mathrm{~m}^2\). It is rotating at constant angular speed \(30 ~\mathrm{rad} / \mathrm{s}\), in a uniform magnetic field of \(2 \times 10^{-2} \mathrm{~T}\). If t...

7Alternating Current

The reactance of capacitor at \(50 \mathrm{~Hz}\) is \(5 \Omega\). If the frequency is increased to \(100 \mathrm{~Hz}\), the new reactance is

8Alternating Current

An alternating voltage of frequency '\(\omega\)' is induced in electric circuit consisting of an inductance '\(L\)' and capacitance '\(C\)', connected in parallel. Then across the inductance coil

9Alternating Current

An e.m.f. \(E=4 \cos (1000 t)\) volt is applied to an LR circuit of inductance \(3 \mathrm{~mH}\) and resistance \(4 ~\Omega\). The maximum current in the circuit is

10Alternating Current

The reciprocal of the total effective resistance of LCR a.c. circuit is called

11Alternating Current

For a purely inductive or a purely capacitive circuit, the power factor is

12Alternating Current

An alternating voltage is applied to a series LCR circuit. If the current leads the voltage by \(45^{\circ}\), then \(\left(\tan 45^{\circ}=1\right)\)

13Alternating Current

A coil having an inductance of \(\frac{1}{\pi} \mathrm{H}\) is connected in series with a resistance of \(300 \Omega\). If \(20 \mathrm{~V}\) from a \(200 \mathrm{~Hz}\) source are impressed across the combination, the value of the phase an...

14Alternating Current

What will be the phase difference between virtual voltage and virtual current when current in the circuit is wattless?

15Alternating Current

An alternating voltage \(E=200 \sqrt{2} \sin (100 t)\) volt is connected to a \(1 \mu \mathrm{f}\) capacitor through an a.c. ammeter. The reading of the ammeter shall

16Alternating Current

The power factor of an R-L circuit is \(\frac{1}{\sqrt{2}}\). If the frequency of \(\mathrm{AC}\) is doubled the power factor will now be

17Alternating Current

In an a.c. circuit the instantaneous current and emf are represented as \(\mathrm{I}=\mathrm{I}_0, \sin [\omega \mathrm{t}-\pi / 6]\) and \(\mathrm{E}=\mathrm{E}_0 \sin [\omega \mathrm{t}+\pi / 3]\) respectively. The voltage leads the curre...

18Alternating Current

With increase in frequency of a.c. supply, the impedance of an L-C-R series circuit

19Alternating Current

In an oscillating LC circuit, the maximum charge on the capacitor is '\(Q\)'. When the energy is stored equally between the electric and magnetic fields, the charge on the capacitor becomes

20Alternating Current

In a \(L\)-\(R\) circuit the inductive reactance is equal to the resistance $R$ in the circuit. An emf \(E=E_0 \cos \omega t\) is applied to the circuit. The power consumed in the circuit is

21Alternating Current

At a particular angular frequency, the reactance of capacitor and that of inductor is same. If the angular frequency is doubled, the ratio of the reactance of the capacitor to that of the inductor will be

22Alternating Current

A group of lamps having total power rating of \(1000 \mathrm{~W}\) is supplied by an AC voltage of \(E=200 \sin \left(310 t+60^{\circ}\right)\), the rms value of current flowing through the circuit is

23Alternating Current

The number of turns in the primary and the secondary of a transformer are 1000 and 3000 , respectively. If \(80 \mathrm{~V} \mathrm{~AC}\) is applied to the primary coil of the transformer, then the potential difference per turn of the seco...

24Alternating Current

An inductor of \(0.5 \mathrm{~mH}\), a capacitor of \(20 ~\mu \mathrm{F}\) and a resistance of \(20 \Omega\) are connected in series with a \(220 \mathrm{~V}\) a.c. source. If the current is in phase with the e.m.f. the maximum current in t...

25Alternating Current

In the given circuit, if \(\frac{\mathrm{dI}}{\mathrm{dt}}=-1 \mathrm{~A} / \mathrm{s}\) then the value of \(\left(V_A-V_B\right)\) at this instance will be

26Alternating Current

In the given circuit, r.m.s. value of current through the resistor \(\mathrm{R}\) is

27Alternating Current

Resistor of \(2\Omega\), inductor of \(100 \mu \mathrm{H}\) and capacitor of \(400 \mathrm{pF}\) are connected in series across a source of \(\mathrm{e}_{\mathrm{rms}}=0.1\) Volt. At resonance, voltage drop across inductor is

28Alternating Current

An a.c. source of \(15 \mathrm{~V}, 50 \mathrm{~Hz}\) is connected across an inductor (L) and resistance (R) in series R.M.S. current of \(0.5 \mathrm{~A}\) flows in the circuit. The phase difference between applied voltage and current is $...

29Alternating Current

When an inductor '\(L\)' and a resistor '\(R\)' in series are connected across a \(15 \mathrm{~V}, 50 \mathrm{~Hz}\) a.c. supply, a current of \(0.3 \mathrm{~A}\) flows in the circuit. The current differs in phase from applied voltage by $$...

30Alternating Current

In series LCR circuit, the voltage across the inductance and the capacitance are not

31Alternating Current

With the gradual increase in frequency of an a. c. source, the impedance of an LCR series circuit

32Alternating Current

The a.c. source of e.m.f. with instantaneous value '\(e\)' is given by \(e=200 \sin (50 t)\) volt. The r.m.s. value of current in a circuit of resistance \(50 \Omega\) is

33Alternating Current

In a series LCR circuit, \(\mathrm{C}=2 \mu \mathrm{F}, \mathrm{L}=1 \mathrm{mH}\) and \(\mathrm{R}=10 \Omega\). The ratio of the energies stored in the inductor and the capacitor, when the maximum current flows in the circuit, is

34Alternating Current

The a.c. source is connected to series LCR circuit. If voltage across \(R\) is \(40 \mathrm{~V}\), that across \(\mathrm{L}\) is \(80 \mathrm{~V}\) and that across \(\mathrm{C}\) is \(40 \mathrm{~V}\), then the e.m.f. '\(e\)' of a.c. source...

35Alternating Current

In a series LR circuit, \(X_L=R\), power factor is \(P_1\). If a capacitor of capacitance \(C\) with \(X_C=X_L\) is added to the circuit the power factor becomes \(P_2\). The ratio of \(P_1\) to \(P_2\) will be

36Alternating Current

In the circuit shown the ratio of quality factor and the bandwidth is

37Alternating Current

The inductive reactance of a coil is '\(\mathrm{X}_{\mathrm{L}}\)'. If the inductance of a coil is tripled and frequency of a.c. supply is doubled, then the new inductive reactance will be

38Alternating Current

In the circuit given below, the current through inductor is \(0.9 \mathrm{~A}\) and through the capacitor is \(0.6 \mathrm{~A}\). The current drawn from the a.c. source is

39Alternating Current

A \(100 \mathrm{~mH}\) coil carries a current of \(1 \mathrm{~A}\). Energy stored in the form of magnetic field is

40Alternating Current

The capacitive reactance of a capacitor '\(C\)' is \(\mathrm{X} \Omega\). Both, the frequency of a.c. supply and capacitance of the above capacitor are doubled. The new capacitive reactance will be

41Alternating Current

With an alternating voltage source of frequency '\(f\)', inductor '\(L\)', capacitor '\(C\)' and resistance '\(R\)' are connected in series. The voltage leads the current by \(45^{\circ}\). The value of '\(L\)' is $$\left(\tan 45^{\circ}=1\...

42Alternating Current

A coil having an inductance of \(\frac{1}{\pi} \mathrm{H}\) is connected in series with a resistance of \(300 \Omega\). If A.C. Source \((20 \mathrm{~V}-200 \mathrm{~Hz})\) is connected across the combination, the phase angle between voltag...

43Alternating Current

In a full wave rectifier circuit without filter, the output current is

44Alternating Current

The resistance offered by an inductor \(\left(X_L\right)\) in an a.c. circuit is

45Alternating Current

A capacitor of capacitance \(50 \mu \mathrm{F}\) is connected to a.c. source \(\mathrm{e}=220 \sin 50 \mathrm{t}\) (\(\mathrm{e}\) in volt, \(\mathrm{t}\) in second). The value of peak current is