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Q JEE MAIN 2022
Water fall from a 40 m high dam at the rate of $9 \times 10^4 \mathrm{~kg}$ per hour. Fifty percentage of gravitational potential energy can...
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Q JEE MAIN 2022
In the given circuit 'a' is an arbitrary constant. The value of m for which the equivalent circuit resistance is minimum, will be $\sqrt{\frac{x}{2}}$ ....
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Q JEE MAIN 2022
The current density in a cylindrical wire of radius r = 4.0 mm is $1.0 \times 10^6 \mathrm{~A} / \mathrm{m}^2$. The current through the outer...
JEE Main Physics Medium
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Q JEE MAIN 2022
Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance $2000 \Omega$ is used to measure the...
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Q JEE MAIN 2022
The combination of two identical cells, whether connected in series or parallel combination provides the same current through an external resistance of $2 \Omega$. The...
JEE Main Physics Medium
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Q JEE MAIN 2022
The length of a given cylindrical wire is increased to double of its original length. The percentage increase in the resistance of the wire will...
JEE Main Physics Medium
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Q JEE MAIN 2022
If n represents the actual number of deflections in a converted galvanometer of resistance G and shunt resistance S. Then the total current I when...
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Q JEE MAIN 2022
A potentiometer wire of length 10 m and resistance $20 \Omega$ is connected in series with a 25 V battery and an external resistance $...
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Q JEE MAIN 2022
What will be the most suitable combination of three resistors $\mathrm{A}=2 \Omega, \mathrm{~B}=4 \Omega, \mathrm{C}=6 \Omega$ so that $\left(\frac{22}{3}\right) \Omega$ is equivalent resistance of combination?
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Q JEE MAIN 2022
Two identical charged particles each having a mass 10 g and charge $2.0 \times 10^{-7} \mathrm{C}$ area placed on a horizontal table with a separation...
JEE Main Physics Easy
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