A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the terminal voltage of the battery is 2.5 V,...
JEE MainPhysicsEasy
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QJEE MAIN 2020
Four resistances $40 \Omega, 60 \Omega, 90 \Omega$ and $110 \Omega$ make the arms of a quadrilateral ABCD. Across AC is a battery of emf...
JEE MainPhysicsMedium
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QJEE MAIN 2020
In a meter bridge experiment S is a standard resistance. R is a resistance wire. It is found that balancing length is l = 25...
JEE MainPhysicsMedium
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QJEE MAIN 2020
The value of current i1 flowing from A to C in the circuit diagram is
JEE MainPhysicsEasy
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QJEE MAIN 2019
In the given circuit the internal resistance of the 18 V cells is negligible. If $\mathrm{R}_1=400 \Omega, \mathrm{R}_3=100 \Omega$ and $\mathrm{R}_4=500 \Omega$ and the reading...
JEE MainPhysicsEasy
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QJEE MAIN 2019
In the experimental set up of metre bridge shown in the figure, the null point is obtained at a distance of 40 cm from A....
JEE MainPhysicsMedium
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QJEE MAIN 2019
A moving coil galvanometer has resistance $50 \Omega$ and it indicates full deflection at 4 mA current. A voltmeter is made using this galvanometer and...
JEE MainPhysicsMedium
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QJEE MAIN 2019
In the circuit shown, the potential difference between A and B is:
JEE MainPhysicsMedium
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QJEE MAIN 2019
A galvanometer having a resistance of $20 \Omega$ and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be...
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