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JEE Main 2024 (Online) 31st January Evening Shift
Numerical
+4
-1
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The distance between charges $$+q$$ and $$-q$$ is $$2 l$$ and between $$+2 q$$ and $$-2 q$$ is $$4 l$$. The electrostatic potential at point $$P$$ at a distance $$r$$ from center $$O$$ is $$-\alpha\left[\frac{q l}{r^2}\right] \times 10^9 \mathrm{~V}$$, where the value of $$\alpha$$ is __________. (Use $$\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9 \mathrm{~Nm}^2 \mathrm{C}^{-2}$$)

JEE Main 2024 (Online) 31st January Evening Shift Physics - Electrostatics Question 61 English

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2
JEE Main 2024 (Online) 31st January Evening Shift
Numerical
+4
-1
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The magnetic flux $$\phi$$ (in weber) linked with a closed circuit of resistance $$8 \Omega$$ varies with time (in seconds) as $$\phi=5 t^2-36 t+1$$. The induced current in the circuit at $$t=2 \mathrm{~s}$$ is __________ A.

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3
JEE Main 2024 (Online) 31st January Evening Shift
Numerical
+4
-1
Change Language

The time period of simple harmonic motion of mass $$M$$ in the given figure is $$\pi \sqrt{\frac{\alpha M}{5 k}}$$, where the value of $$\alpha$$ is _________.

JEE Main 2024 (Online) 31st January Evening Shift Physics - Simple Harmonic Motion Question 23 English

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