Physics · JEE

Online Practice: Alternating currents, peak and RMS value of alternating current/voltage for JEE

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Sharpen your physics preparation with interactive online practice for Alternating currents, peak and RMS value of alternating current/voltage. Goodmarks offers 16+ JEE-style MCQs mapped to the official syllabus, each with detailed explanations so you learn from every attempt.

Syllabus context

Part of Electromagnetic Induction and Alternating Currents in JEE Main Physics.

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Q1PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

Choose the incorrect statement.

Q2PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

An alternating voltage given as

\boldsymbol{V}=

\mathbf{1 0 0} \sqrt{\mathbf{2}} \sin 100 t \quad

is applied to a capacitor of

1 \mu F

. The current reading of the ammeter will be equal to

\mathrm{mA}

Q3PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

The average half-cycle value of a sine wave with a

40 V

peak is

Q4PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

A sinusoidal voltage

V=200 \sin 314 t

is applied to a

10 \Omega

resistor. Find rms current

Q5PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

An LC circuit has

L=5 \mathrm{mH}

and

C=20 \mu \mathrm{F}

\boldsymbol{v}=\mathbf{5} \times \mathbf{1 0}^{-\mathbf{3}}

coswt is supplied. is twice the resonant frequency. Find the maximum charge stored in the capacitor:

Q6PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

In an a.c. circuit

\mathrm{V}

and I are given by

V=50 \sin 50 t

volt and

I=

100 \sin (50 t+\pi / 3) \mathrm{mA} .

The power dissipated in the circuit

Q7PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

In a circuit the coil of a choke:

Q8PhysicsUnit 14: Electromagnetic Induction and Alternating Currents

The figure given shows the variation of an alternating emf with time. What is the average value of the emf for the shaded part of the graph?

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Frequently asked questions

How do I practice Alternating currents, peak and RMS value of alternating current/voltage online for JEE?

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How many Alternating currents, peak and RMS value of alternating current/voltage questions are available?

Goodmarks currently has 16+ JEE-aligned MCQs for Alternating currents, peak and RMS value of alternating current/voltage, with more added regularly.

Is this aligned with the JEE Main syllabus?

Yes. All Physics questions on Goodmarks are organised by official JEE Main units and subtopics, including Alternating currents, peak and RMS value of alternating current/voltage.

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Every question includes the correct answer and a step-by-step explanation. Free users can practise a random mix; Pro unlocks full subject and topic filters.