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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
For the given circuit, comment on the type of transformer used :
JEE Main Physics Easy
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Q JEE MAIN 2021
An AC source rated 220 V, 50 Hz is connected to a resistor. The time taken by the current to change from its maximum to...
JEE Main Physics Easy
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Q JEE MAIN 2021
In a scries LCR resonance circuit, if we change the resistance only, from a lower to higher value :
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Q _JEE_MAIN_2021
An AC current is given by $\mathrm{I}=\mathrm{I} 1$ sincet +I 2 cosest. A hot wire ammeter will give a reading.
JEE Main Physics Easy
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Q JEE MAIN 2021
A sinusoidal voltage of peak value 250 V is applied to a series LCR circuit, in which $\mathrm{R}=8 \Omega, \mathrm{~L}=24 \mathrm{mH}$ and $\mathrm{C}=60 \mu \mathrm{~F}$....
JEE Main Physics Easy
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Q JEE MAIN 2021
In a series LCR resonant circuit, the quality factor is measured as 100. If the inductance is increased by two fold and resistance is decreased...
JEE Main Physics Easy
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Q JEE MAIN 2021
An RC circuit as shown in the figure is driven by a AC source generating a square wave. The output wave pattern monitored by CRO...
JEE Main Physics Easy
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Q JEE MAIN 2021
A common transistor radio set requires 12V (D.C.) for its operation. The D.C. source is constructed by using a transformer and a rectifier circuit, which...
JEE Main Physics Easy
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Q JEE MAIN 2021
A resonance circuit having inductance and resistance $2 \times 10^{-4} \mathrm{H}$ and $6.28 \Omega$ respectively oscillates at 10 MHz frequency. The value of quality factor...
JEE Main Physics Medium
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Q JEE MAIN 2021
An LCR circuit contains resistance of $110 \Omega$ and a supply of 220 V at $300 \mathrm{rad} / \mathrm{s}$ angular frequency. If only capacitance is...
JEE Main Physics Easy
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