JEE Physics
Alternating Current Basics: JEE Questions & Solutions
13 previous-year JEE Physics questions on Alternating Current Basics, each with a worked step-by-step solution.
Previous-year questions
- 01The electric current in the circuit is given as i=i₀(t/T). The r.m.s. current for the period t=0 to t=T is:MCQEasyJEE 2026
- 02An inductor stores 16 J of magnetic field energy and dissipates 32 W of thermal energy due to its resistance when an alternating current of…NVAEasyJEE 2026
- 03An alternating current is given by I = I_A sin ω t + I_B cos ω t. The r.m.s. current will be:MCQMediumJEE 2025
- 04Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Choke coil is…MCQEasyJEE 2025
- 05An electric bulb rated as 100 W-220 V is connected to an ac source of rms voltage 220 V. The peak value of current through the bulb is:MCQEasyJEE 2025
- 06An alternating current is represented by the equation, i=100 √2 sin (100 π t) ampere. The RMS value of current and the frequency of the…MCQEasyJEE 2025
- 07An AC current is represented as: i = 5√2 + 10 cos(650π t + π/6) Amp The RMS value of the current is:MCQEasyJEE 2025
- 08In an a.c. circuit, voltage and current are given by V = 100 sin(100t) V and I = 100 sin(100t + π/3) mA, respectively. The average power…MCQEasyJEE 2024
- 09An alternating voltage V(t) = 220 sin 100t volt is applied to a purely resistive load of 50Ω. The time taken for the current to rise from…NVAEasyJEE 2024
- 10Three identical resistors with resistance R = 12 Ω and two identical inductors with self inductance L = 5 mH are connected to an ideal…NVAEasyJEE 2023
- 11An alternating voltage source V = 260 sin (628t) is connected across a pure inductor of 5 mH. The inductive reactance in the circuit is:MCQEasyJEE 2023
- 12A capacitor of capacitance 150.0 μ F is connected to an alternating source of emf given by E = 36 sin (120 π t) V. The maximum value of…MCQEasyJEE 2023
- 13As per the given graph, choose the correct representation for curve A and curve B. (Where X_L = reactance of pure inductive circuit…MCQEasyJEE 2023
Frequently asked questions
Our bank has 13 previous-year JEE Physics questions tagged to Alternating Current Basics, drawn from JEE papers between 2023 and 2026, including 2 from 2026 alone. Each comes with a full step-by-step solution.
Alternating Current Basics is rated Basic overall for JEE Physics. The PYQs on this page break down as 12 easy, 1 medium.
Of the 13 previous-year questions on Alternating Current Basics, 10 are multiple-choice (MCQ) and 3 are numerical-value (NVA) questions.
Based on recent paper analysis, Alternating Current Basics is worth about 1 mark in JEE Main. It sits in Electromagnetic Induction & Alternating Current, a Class 12 Physics chapter.
More Electromagnetic Induction & Alternating Current topics
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