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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
A series LCR circuit driven by 300 V at a frequency of 50 Hz contains a resistance $\mathrm{R}=3 \mathrm{k} \Omega$, an inductor of inductive reactance...
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Q JEE MAIN 2021
Two circuits are shown in the figure (a) & (b). At a frequency of ________rad/s the average power dissipated in one cycle will be same...
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Q JEE MAIN 2021
A 100 $\Omega$ resistance, a 0.1 $\mu \mathrm{F}$ capacitor and an inductor are connected in series across a 250 V supply at variable frequency. Calculate...
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Q JEE MAIN 2021
A $10 \Omega$ resistance is connected across $220 \mathrm{~V}-50 \mathrm{~Hz} \mathrm{AC}$ supply. The time taken by the current to change from its maximum value to...
JEE Main Physics Medium
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Q JEE MAIN 2021
A $100 \Omega$ resistance, a $0.1 \mu \mathrm{~F}$ capacitor and an inductor are connected in series across a 250 V supply at variable frequency. Calculate...
JEE Main Physics Easy
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Q JEE MAIN 2021
Intensity of sunlight is observed as $0.092 \mathrm{Wm}^{-2}$ at a point in free space. What will be the peak value of magnetic field at that...
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Q JEE MAIN 2021
Match List-I with List-II : Choose the correct answer from the options given below :
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Q JEE MAIN 2021
In an LCR series circuit, an inductor 30 mH and a resistor $1 \Omega$ are connected to an AC source of angular frequency 300 rad/s....
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Q JEE MAIN 2021
A 0.07 H inductor and a $12 \Omega$ resistor are connected in series to a $220 \mathrm{~V}, 50 \mathrm{~Hz}$ ac source. The approximate current in...
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Q JEE MAIN 2021
In a circuit consisting of a capacitance and a generator with alternating emf $\mathrm{E}_9=\mathrm{E}_{90} \sin \omega t, \mathrm{~V}_c$ and $\mathrm{I}_c$ are the voltage and current....
JEE Main Physics Easy
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