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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

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...
JEE Main Physics Easy
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Q JEE MAIN 2020
A series AC circuit containing an inductor ( 20 mH ), a capacitor ( $120 \mu \mathrm{~F}$ ) and a resistor ( $60 \Omega$ )...
JEE Main Physics Medium
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Q JEE MAIN 2020
In a series LR circuit, power of 400 W is dissipated from a source of $250 \mathrm{~V}, 50 \mathrm{~Hz}$. The power factor of the circuit...
JEE Main Physics Hard
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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
JEE Main Physics Easy
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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...
JEE Main Physics Easy
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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,...
JEE Main Physics Medium
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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...
JEE Main Physics Medium
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Q JEE MAIN 2021
At very high frequencies, the effective impendance of the given circuit will be $\_\_\_\_$ $\Omega$.
JEE Main Physics Easy
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Q JEE MAIN 2021
At very high frequencies, the effective impendance of the given circuit will be $\_\_\_\_$ $\Omega$
JEE Main Physics Easy
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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
JEE Main Physics Easy
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