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JEE Main 2024 (9 Apr, Shift 2) · Electric Flux & Gauss's Law

Electric Flux & Gauss's Law question from JEE Main 2024 (9 Apr, Shift 2)

Q43JEE Main 2024 · 9 APR · SHIFT 2Easy

Electric Flux & Gauss's Law

Five charges $+q, +5q, -2q, +3q$ and $-4q$ are situated as shown in the figure. The electric flux due to this configuration through the surface $S$ is:

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Answer: (d)

Only charges inside $S$ contribute: $+5q,\ +q,\ -2q$ (the $-4q$ and $+3q$ lie outside).
$q_{enc} = 5q + q - 2q = 4q$
$\phi = \dfrac{4q}{\epsilon_0}$
So the answer is (d).

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