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JEE Main 2024 (29 Jan, Shift 1) · Electric Flux & Gauss's Law

Electric Flux & Gauss's Law question from JEE Main 2024 (29 Jan, Shift 1)

Q46JEE Main 2024 · 29 JAN · SHIFT 1Easy

Electric Flux & Gauss's Law

Two charges of $5Q$ and $-2Q$ are situated at the points $(3a, 0)$ and $(-5a, 0)$ respectively. The electric flux through a sphere of radius ' $4a$ ' having center at origin is:

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Answer: (d)

$5Q$ at distance $3a < 4a$ is inside; $-2Q$ at distance $5a > 4a$ is outside.
$\phi = \dfrac{q_{enc}}{\varepsilon_0} = \dfrac{5Q}{\varepsilon_0}$
So the answer is (d).

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