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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
Find the peak current and resonant frequency of the following circuit
JEE Main Physics Easy
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Q JEE MAIN 2021
An alternating current is given by the equation $\mathrm{i}=\mathrm{i}_1 \sin \omega \mathrm{t}+\mathrm{i}_2 \cos \omega \mathrm{t}$. The rms current will be
JEE Main Physics Easy
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Q JEE MAIN 2021
A series LCR circuit is designed to resonate at an angular frequency $\omega_0=10^5 \mathrm{rad} / \mathrm{s}$. The circuit draws 16 W power from 120 V...
JEE Main Physics Easy
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Q JEE MAIN 2021
A transmitting station releases waves of wavelength 960 m . A capacitor of $2.56 \mu \mathrm{~F}$ is used in the resonant circuit. The self inductance...
JEE Main Physics Medium
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Q JEE MAIN 2022
The angular frequency of alternating current in a L-C-R circuit is 100 rad/s. The components connected are shown in the figure. Find the value of...
JEE Main Physics Medium
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Q JEE MAIN 2022
In the given circuit, the magnitude of $V_L$ and $V_C$ are twice that of $V_R$. Given that $f =50 \mathrm{~Hz}$, the inductance of the coil...
JEE Main Physics Medium
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Q JEE MAIN 2022
A transformer operating at primary voltage 8 kV and secondary voltage 160 V serves a load of 80 kW. Assuming the transformer to be ideal...
JEE Main Physics Medium
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Q JEE MAIN 2022
A circuit element X when connected to an a.c. supply of peak voltage 100 V gives a peak current of 5 A which is in...
JEE Main Physics Medium
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Q JEE Main 2022
The equation of current in a purely inductive circuit is $5 \sin \left(49 \pi t-30^{\circ}\right)$. If the inductance is 30 mH then the equation for...
JEE Main Physics Medium
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Q JEE MAIN 2022
The effective current I in the given circuit at very high frequencies will be ____A.
JEE Main Physics Hard
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