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QJEE MAIN 2021
An ac circuit has an inductor and a resistor of resistance $R$ in series, such that $X_L=3 R$. Now, a capacitor is added in series...
JEE MainPhysicsEasy
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QJEE MAIN 2019
An alternating voltage $\mathrm{v}(\mathrm{t})=220 \sin 100 \pi \mathrm{t}$ volt is applied to a purely resistive load of $50 \Omega$. The time taken for the current...
JEE MainPhysicsMedium
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QJEE MAIN 2021
In the given circuit the AC source has $\omega=100 \mathrm{rad} \mathrm{s}^{-1}$. Considering the inductor and capacitor to be ideal, what will be the current I...
JEE MainPhysicsEasy
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QJEE 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...
JEE MainPhysicsEasy
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QJEE 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...
JEE MainPhysicsEasy
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QJEE 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 MainPhysicsEasy
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QJEE 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 MainPhysicsMedium
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QJEE 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 MainPhysicsEasy
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QJEE 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...
JEE MainPhysicsMedium
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QJEE MAIN 2021
Match List-I with List-II : Choose the correct answer from the options given below :
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Choose the correct answer from the options given below : 