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QJEE MAIN 2025
A wire of resistance R is bent into a triangular pyramid as shown in figure with each segment having same length. The resistance between points...
JEE MainPhysicsMedium
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QJEE MAIN 2025
The battery of a mobile phone is rated as 4.2 V, 5800 mAh. How much energy is stored in it when fully charged?
JEE MainPhysicsMedium
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QJEE MAIN 2025
A wire of resistance R is bent into an equilateral triangle and an identical wire is bent into a square. The ratio of resistance between...
JEE MainPhysicsMedium
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QJEE MAIN 2025
Find the equivalent resistance between two ends of the following circuit
JEE MainPhysicsEasy
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QJEE MAIN 2025
A wire of resistance $9\Omega$ is bent to form an equilateral triangle. Then the equivalent resistance across any two vertices will be ________ ohm
JEE MainPhysicsEasy
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QJEE MAIN 2025
Consider a moving coil galvanometer (MCG): A. The torsional constant in moving coil galvanometer has dimentions $\left[ {\text{M}{{\text{L}}^{2}}~{{\text{T}}^{{-2}}}} \right]$ B. Increasing the current sensitivity may...
JEE MainPhysicsMedium
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QJEE MAIN 2025
A galvanometer having a coil of resistance $30 \Omega$ need 20 mA of current for full-scale deflection. If a maximum current of 3 A is...
JEE MainPhysicsMedium
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QJEE MAIN 2025
Sliding contact of a potentiometer is in the middle of the potentiometer wire having resistance $R_p=1 \Omega$ as shown in the figure. An external resistance...
JEE MainPhysicsEasy
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QJEE MAIN 2025
Given below are two statements : Statement-I : The equivalent emf of two nonideal batteries connected in parallel is smaller than either of the two...
JEE MainPhysicsEasy
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QJEE MAIN 2025
An amount of ice of mass $10^{-3} \mathrm{~kg}$ and temperature $-10^{\circ} \mathrm{C}$ is transformed to vapour of temperature $110^{\circ} \mathrm{C}$ by applying heat. The total...
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