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Current Electricity

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
In a conductor, if the number of conduction electrons per unit volume is $8.5 \times 10^{28} \mathrm{~m}^{-3}$ and mean free time is 25 fs (femto...
JEE Main Physics Medium
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Q JEE MAIN 2020
The current $I 1$ (in A) flowing through $1 \Omega$ resistor in the following circuit is :
JEE Main Physics Medium
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Q JEE MAIN 2019
The resistance of a galvanometer is 50 ohm and the maximum current which can be passed through it is 0.002 A. What resistance must be...
JEE Main Physics Medium
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Q JEE MAIN 2019
A metal wire of resistance $3 \Omega$ is elongated to make a uniform wire of double its previous length. This new wire is now bent...
JEE Main Physics Medium
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Q JEE MAIN 2021
A resistor dissipates 192 J of energy in 1 s when a current of 4A is passed through it. Now, when the current is doubled,...
JEE Main Physics Easy
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Q JEE MAIN 2021
The voltage drop across $15 \Omega$ resistance in the given figure will be $\_\_\_\_$ V.
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Q JEE MAIN 2021
A square shaped wire with resistance of each side $3 \omega$ is bent to form a complete circle. The resistance between two diametrically opposite points...
JEE Main Physics Easy
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Q JEE MAIN 2021
A resistor dissipates 192 J of energy in 1 s when a current of 4A is passed through it. Now, when the current is doubled,...
JEE Main Physics Easy
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Q JEE MAIN 2019
A current of 2 mA was passed through an unknown resistor which dissipated a power of 4.4 W. Dissipated power when an ideal power supply...
JEE Main Physics Medium
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Q JEE MAIN 2021
Consider a galvanometer shunted with $5 \Omega$ resistance and $2 \%$ of current passes through it. What is the resistance of the given galvanometer ?
JEE Main Physics Easy
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