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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2026
The electric current in the circuit is given as $i=i_0(t / T)$. The r.m.s current for the period $t=0$ to $t=T$ is $\_\_\_\_$。
JEE Main Physics Medium
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Q JEE MAIN 2026
Let $\mathrm{P}_1: y=4 x^2$ and $\mathrm{P}_2: y=x^2+27$ be two parabolas. If the area of the bounded region enclosed between $P_1$ and $P_2$ is six times...
JEE Main Mathematics Medium
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Q JEE MAIN 2026
The area of the region enclosed between the circles $x^2+y^2=4$ and $x^2+(y-2)^2=4$ is:
JEE Main Mathematics Easy
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Q JEE MAIN 2026
For the series LCR circuit connected with $220 \mathrm{~V}, 50 \mathrm{~Hz}$ a.c source as shown in the figure, the power factor is $\frac{\alpha}{10}$. The value...
JEE Main Physics Easy
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Q JEE MAIN 2026
An electric power line having total resistance of $2 \Omega$, delivers 1 kW of power at 250 ym the percentage efficiency of transmission line is...
JEE Main Physics Easy
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Q JEE ADVANCED_2025
A circuit with an electrical load having impedance $Z$ is connected with an $A C$ source as shown in the diagram. The source voltage varies...
JEE Advance Physics Easy
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Q JEE MAIN 2020
An inductance coil has a reactance of $100 \Omega$. When an AC signal of frequency 1000 Hz is applied to the coil, the applied voltage...
JEE Main Physics Medium
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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
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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