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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE-MAIN 2022
In a series LCR circuit, the inductance, capacitance and resistance are L = 100mH,$C=100 \mu \mathrm{~F}$ and $\mathrm{R}=10 \Omega$ respectively. They are connected to an...
JEE Main Physics Easy
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Q JEE MAIN 2022
A sinusoidal voltage $V(t)=210 \sin 3000 t$ volt is applied to a series LCR circuit in which $L=10 \mathrm{mH}, C=25 \mu \mathrm{~F}$ and $\mathrm{R}=100 \Omega$....
JEE Main Physics Easy
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Q JEE MAIN 2022
Given below are two statements :
Statement-I : The reactance of an ac circuit is zero. It is possible that the circuit contains a...
JEE Main Physics Easy
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Q JEE MAIN 2022
A 110 V, 50 Hz, AC source is connected in the circuit (as shown in figure). The current through the resistance 55 $\Omega$,, at resonance...
JEE Main Physics Hard
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Q JEE MAIN 2022
A telegraph line of length loo km has a capacity of $0.01 \mu \mathrm{~F} / \mathrm{km}$ and it carries an alternating current at 0.5 kilo...
JEE Main Physics Easy
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Q JEE-MAIN 2022
For a series LCR circuit, I vs $\omega$ curve is shown : $\mid$ (a) To the left of $\omega r_r$, the circuit is mainly capacitive....
JEE Main Physics Medium
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Q JEE MAIN 2022
An AC source is connected to an inductance of 100 mH , a capacitance of $100 \mu \mathrm{~F}$ and a resistance of $120 \Omega$ as...
JEE Main Physics Easy
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Q JEE MAIN 2022
The current flowing through an ac circuit is given by $I=5 \sin (120 \pi t) A$
How long will the current take to reach...
JEE Main Physics Easy
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Q JEE MAIN 2022
As shown in the figure an inductor of inductance 200 mH is connected to an AC source of emf 220 V and frequency 50 Hz....
JEE Main Physics Medium
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Q JEE MAIN 2022
A resistance of 40 $\Omega$ is connected to a source of alternating current rated 220 V, 50 Hz. Find the time taken by the current...
JEE Main Physics Medium
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