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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2020
An AC circuit has $\mathrm{R}=100 \Omega, \mathrm{C}=2 \mu \mathrm{~F}$ and $\mathrm{L}=80 \mathrm{mH}$, connected in series. The quality factor of the circuit is
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Q JEE MAIN 2019
A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns. The output power...
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Q JEE MAIN 2020
In LC circuit the inductance L $=40 \mathrm{mH}$ and capacitance $\mathrm{C}=100 \mu \mathrm{~F}$. If a voltage $\mathrm{V}(\mathrm{t})=10 \sin (314 \mathrm{t})$ is applied to the circuit,...
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Q JEE MAIN 2019
A series AC circuit containing an inductor (20 mH), a capacitor (120 μF) and a resistor (60 Ω) is driven by an AC source of...
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Q JEE MAIN 2021
At very high frequencies, the effective impendance of the given circuit will be $\_\_\_\_$ $\Omega$.
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Q JEE MAIN 2021
At very high frequencies, the effective impendance of the given circuit will be $\_\_\_\_$ $\Omega$
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Q JEE MAIN 2021
In an ac circuit, an inductor, a capacitor and a resistor are connected in series with $\mathrm{XL}=\mathrm{R}=\mathrm{Xc}$. Impedance of this circuit is
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Q JEE MAIN 2021
An ac circuit has an inductor and a resistor of resistance $R$ in series, such that $X_L=3 R$. Now, a capacitor is added in series...
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Q JEE MAIN 2019
An alternating voltage $\mathrm{v}(\mathrm{t})=220 \sin 100 \pi \mathrm{t}$ volt is applied to a purely resistive load of $50 \Omega$. The time taken for the current...
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Q JEE MAIN 2021
In the given circuit the AC source has $\omega=100 \mathrm{rad} \mathrm{s}^{-1}$. Considering the inductor and capacitor to be ideal, what will be the current I...
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