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Alternating Current

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN_2023
Match the List–I with List–II. Choose the correct answer from the options given below:
JEE Main Physics Medium
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Q JEE MAIN 2023
A free neutron decays into a proton but a free proton does not decay into neutron. This is because
JEE Main Physics Easy
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Q JEE MAINS 2024
In an LC oscillator, if values of inductance and capacitance become twice and eight times, respectively, then the resonant frequency of oscillator becomes x times...
JEE Main Physics Easy
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Q JEE MAIN
When a dc voltage of 100V is applied to an inductor, a de current of 5A flows through it. When an ac voltage of 200"...
JEE Main Physics Medium
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Q JEE MAIN
A LCR circuit is at resonance for a capacitor C, inductance L and resistance R. Now the value of resistance is halved keeping all other...
JEE Main Physics Medium
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Q JEE MAIN
Given below are two statements : Statement I : In an LCR series circuit, current is maximum at resonance. Statement II : Current in a...
JEE Main Physics Hard
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Q JEE MAIN 2024
An ac source is connected in given series LCR circuit. The rms potential difference across the capacitor of 20μF is ..............V.
JEE Main Physics Medium
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Q JEE MAIN 2024
A alternating current at any instant is given by $\mathrm{i}=\left[6+\sqrt{56} \sin \left(100 \pi \mathrm{t}+\frac{\pi}{3}\right)\right] \mathrm{A}$. The rms value of the current is $\_\_\_\_$ A.
JEE Main Physics Easy
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Q JEE MAIN 2024
In an ac circuit, the instantaneous current is zero, when the instantaneous voltage is maximum. In this case, the source may be connected to :...
JEE Main Physics Medium
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Q JEE MAIN
In series LCR circuit, the capacitance is changed from C to 4C. To keep the resonance frequency unchanged, the new inductance should be :
JEE Main Physics Easy
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