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JEE Alternating Current PYQs with Solutions

12 previous year questions from Alternating Current (JEE Main & Advanced NSEP) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

12 questionsNSEPAnswers + solutions

About Alternating Current PYQs

Alternating Current has 12 previous year questions in the Quantrex Academy JEE Main & Advanced NSEP bank. The 12 questions in this list come from Olympiad workbook (12). Each question opens on its own page with the options, the correct answer and the worked solution where available.

Alternating Current questions with solutions

Circuit A is a series LCR circuit with C_ A =C and L_ A =L . Another circuit B has C_ B =2 C and L_ B =L / 2 . Both the circuits have the same resistance and the capacitor and the

Olympiad workbook Solution View → 2

The impedance (Z) of three electrical components e_1, e_2 and e_3 has frequency (f) dependence as shown by the following three curves. The three components e_1, e_2, e_3 are

Olympiad workbook Solution View → 3

A 10 ohm resistor is connected to a supply voltage alternating between +4 V and -2 V as shown in the following graph. The average power dissipated in the resistor per cycle is

Olympiad workbook Solution View → 4

In a series R-C circuit the supply voltage (V ~s) is kept constant at 2 V and the frequency f of the sinusoidal voltage is varied from 500 Hz to 2000 Hz . The voltage across the

Olympiad workbook Solution View → 5

After charging a capacitor C to a potential V , it is connected across an ideal inductor L . The capacitor starts discharging simple harmonically at time t=0 . The charge on the

Olympiad workbook Solution View → 6

The same alternating voltage v=V_0 (ω t) is applied in both the LCR circuits shown below. The current through the resistance R at resonance is

Olympiad workbook Solution View → 7

In the following circuit the current is in phase with the applied voltage. Therefore, the current in the circuit and the frequency of the source voltage respectively, are

Olympiad workbook Solution View → 8

In a series LCR circuit fed with an alternating emf E=E_0 ω t ,

Olympiad workbook Solution View → 9

An Alternating Current is expressed as i=i_1 ω t+i_2 ω t . The RMS value of current is

Olympiad workbook Solution View → 10

In the L R circuit shown in figure, switch S is closed at time t=0 , the charge that passes through the battery of emf E in one time constant is (e being the base of natural

Olympiad workbook Solution View → 11

DC emf of 15 V is applied to a circuit containing 5 H inductance and 10 Ω resistance in series at t=0 . The ratio of the currents in the circuit at t=0.5 and at t=1.0 is

Olympiad workbook Solution View → 12

Impedance of a given series LCR circuit, fed with alternating current, is the same for two frequencies f_1 and f_2 . The resonance frequency f_R of the circuit is

Olympiad workbook Solution View →

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Main Alternating Current list

The larger JEE Alternating Current list is under Physics (411 questions).

Related JEE NSEP chapters

Ray Optics (48)Electrostatics (33)Rotational Motion (32)Current Electricity (25)Waves and Sound (25)Mechanical Properties of Fluids (24)Magnetic Effects of Current (23)Dual Nature of Matter (20)Work, Power and Energy (18)Semiconductors (17)Oscillations (17)Thermodynamics (17)

Alternating Current in other exams

NEET Alternating Current (366)BITSAT Alternating Current (20)