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Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
A steel rod with $y=2.0 \times 10^{11} \mathrm{Nm}^{-2}$ and $\alpha=10^{-5} \mathrm{C}^{-1}$ of length 4 m and area of cross-section $10 \mathrm{~cm}_2$ is heated from $...
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Q JEE MAIN 2021
A Copper (Cu) rod of length 25 cm and cross-sectional area 3 mm2 is joined with a similar Aluminium (Al) rod as shown in figure....
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Q JEE MAIN 2021
A current of 5 A is passing through a non-linear magnesium wire of cross-section $0.04 \mathrm{~m}^2$ . At every point the direction of current density...
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Q JEE MAIN 2019
In the figure shown, what is the current (in Ampere) drawn from the battery? You are given : $$ \begin{aligned} & \mathrm{R}_1=15 \Omega, \mathrm{R}_2=10 \Omega,...
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Q JEE MAIN 2021
In the given figure, a battery of emf E is connected across a conductor PQ of length ' I ' and different area of cross-sections...
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Q JEE MAIN 2019
In the circuit shown, a four wire potentiometer is made of a 400 cm long wire, which extends between A and B . The resistance...
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Q JEE MAIN 2021
In the given figure switches $S_1$ and $S_2$ are in open condition. The resistance across ab when the switches $S_1$ and $S_2$ are closed is...
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Q JEE MAIN 2019
A cell of internal resistance r drives current through an external resistance R. The power delivered by the cell to the external resistance will be...
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Q JEE MAIN 2021
The Value of current in the $6 \Omega$ resistance is :
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Q JEE MAIN 2021
Two resistors $\mathrm{R}_1=(4 \pm 0.8) \Omega$ and $\mathrm{R}_2=(4 \pm 0.4) \Omega$ are connected in parallel. The equivalent resistance of their parallel combination will be :
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