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BITSAT Alternating Current PYQs with Solutions

20 previous year questions from Alternating Current (BITSAT Physics) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

20 questionsPhysics2009–2024Answers + solutions

About Alternating Current PYQs

Alternating Current has 20 previous year questions in the Quantrex Academy BITSAT Physics bank. The 20 questions in this list come from BITSAT (20), spanning 2009 to 2024. Each question opens on its own page with the options, the correct answer and the worked solution where available.

Questions by year (this list)

2024: 3
2023: 1
2022: 1
2021: 2
2020: 1
2018: 1
2016: 1
2015: 2
2014: 1
2012: 2
2011: 1
2010: 2

Alternating Current questions with solutions

Find the average value of current shown graphically from t=0 to t=2 s .

BITSAT 2024 Solution View → 2

In an ac circuit, an inductor, a capacitor and a resistor are connected in series with X_L=R=X_ C . Impedance of this circuit is :

BITSAT 2024 Solution View → 3

An alternating voltage V(t)=220 100 π t volt is applied to a purely resistive load of 50 Ω . The time taken for the current to rise from half of the peak value to the peak value

BITSAT 2024 Solution View → 4

In the given circuit, rms value of current (Irms) through the resistor R is :

BITSAT 2023 Solution View → 5

In the circuit shown in the figure, the AC source gives a voltage V=20 (2000 t) neglecting source resistance, the voltmeter and ammeter reading will be

BITSAT 2022 Solution View → 6

An alternating voltage V=V_ 0 ω t is applied across a circuit. As a result, a current I=I_ 0 (ω t-(π)/(2)) flows in it. The power consumed per cycle is

BITSAT 2021 Solution View → 7

For an RLC circuit driven with voltage of amplitude V_ m and frequency ω_ 0 = 1 LC the current exhibits resonance the quality factor, Q is given by

BITSAT 2021 Solution View → 8

In series combination of R, L and C with an A.C. source at resonance, if R=20 ohm, then impedance Z of the combination is

BITSAT 2020 Solution View → 9

A resistor R , an inductor L , a capacitor C and voltmeters V _ 1 , V _ 2 and V _ 3 are connected to an oscillator in the circuit as shown in the adjoining diagram. When the

BITSAT 2018 Solution View → 10

A resistor of resistance R , capacitor of capacitance C and inductor of inductance L are connected in parallel to AC power source of voltage ε_ 0 ω t . The maximum current through

BITSAT 2016 Solution View → 11

A direct current of 5 A is superposed on an alternating current I=10 ω t flowing through the wire. The effective value of the resulting current will be

BITSAT 2015 Solution View → 12

In the circuit shown below, the ac source has voltage V=20 (ω t) volt with ω=2000 rad / s The amplitude of the current will be nearest to

BITSAT 2015 Solution View → 13

Voltage V and current i in A C circuit are given by V=50 (50 t) volt, i=50 (50 t+(π)/(3)) mA The power dissipated in the circuit is

BITSAT 2014 Solution View → 14

The impedance of a circuit consists of 3 Ω resistance and 4 Ω reactance. The power factor of the circuit is

BITSAT 2012 Solution View → 15

The r.m.s. value of potential difference V shown in the figure is

BITSAT 2012 Solution View → 16

Which one of the following curves represents the variation of impedance (Z ) with frequency f in series LCR circuit?

BITSAT 2011 Solution View → 17

An alternating voltage V=V_ 0 sin ot is appliedacross a circuit. As a result, a current I=I_ 0 (ω t-π / 2) flows in it. The power consumed per cycle is

BITSAT 2010 Solution View → 18

A resistance R and inductance L and a capacitor C all are connected in series with an AC supply. The resistance of R is 16 ohm and for a given frequency, the inductive reactance

BITSAT 2010 Solution View → 19

The instantaneous current from an a.c. source is I=6 314 t . What is the rms value of the current?

BITSAT 2009 Solution View → 20

A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an ac source, of 200 volt, 100 Hz, is connected across the coil, the current in the coil will be

BITSAT 2009 Solution View →

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Related BITSAT Physics chapters

Current Electricity (36)Electrostatics (36)Magnetic Effects of Current (36)Laws of Motion (32)Thermodynamics (32)Oscillations (31)Ray Optics (31)Waves and Sound (30)Dual Nature of Matter (29)Semiconductors (29)Mechanical Properties of Fluids (28)Motion in Two Dimensions (28)

Alternating Current in other exams

JEE Alternating Current (411)NEET Alternating Current (366)