Electrostatics Question 9

Question 9 - 2024 (29 Jan Shift 1)

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

(1) $\frac{2 Q}{\varepsilon_{0}}$

(2) $\frac{5 Q}{\varepsilon_{0}}$

(3) $\frac{7 \mathrm{Q}}{\varepsilon_{0}}$

(4) $\frac{3 Q}{\varepsilon_{0}}$

Show Answer

Answer: (2)

$5 \mathrm{Q}$ charge is inside the spherical region flux through sphere $=\frac{5 \mathrm{Q}}{\varepsilon_{0}}$