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Alternating Current

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Q JEE MAIN 2022
To light, a $50 \mathrm{~W}, 100 \mathrm{~V}$ lamp is connected, in series with a capacitor of capacitance $\frac{50}{\pi \sqrt{\mathrm{x}}} \mu \mathrm{F}$ with $...
JEE Main Physics Hard
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Q JEE MAIN 2022
An alternating emf $E=440 \sin 100 \pi t$ is applited to a circuit containing an inductance of $\frac{\sqrt{2}}{\pi} H$. If an a.c. ammeter is connected...
JEE Main Physics Easy
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Q JEE MAIN 2022
A direct current of 4 A and an alternating current of peak value 4A flow through resistance of $3 \Omega$ and $2 \Omega$ respectively. The...
JEE Main Physics Medium
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Q JEE MAIN 2022
To increase the resonant frequency in series LCR circuit,
JEE Main Physics Easy
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Q JEE MAIN 2022
In a series LR circuit $X_L=R$ and power factor of the circuit is $\mathrm{P}_1$. When capacitor with capacitance C such that $X_L=X_C$is put in series,...
JEE Main Physics Medium
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Q JEE MAIN 2022
An inductor of $0.5 \mu \mathrm{H}$, a capacitor of $200 \mu \mathrm{~F}$ and a resistor of $2 \Omega$ are connected in series with a 220...
JEE Main Physics Medium
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Q JEE MAIN 2022
If L, C and R are the self inductance, capacitance and resistance respectively, which of the following does not have the dimension of time ?
JEE Main Physics Easy
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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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