Two small spheres each having the charge +Q are suspended b…

Physics Electrostatics Potential & Capacitance Charge and Coulombs Law Single Correct MCQ

Published on: September 12, 2026

Two small spheres each having the charge +Q are suspended by insulating threads of length $L_z$ from a hook. This arrangement is taken in space where there is no gravitational effect, then the angle between the two suspensions and the tension in each will be

$180^{o}, \frac{1}{4 \pi \varepsilon_0} \frac{Q^2}{(2L)^2}$

$90^{\circ}, \frac{1}{4 \pi \epsilon_0} \frac{Q^2}{L^2}$

$180^\circ, \frac{1}{4 \pi \varepsilon_0} \frac{Q^2}{2L^2}$

$180^{\circ}, \frac{1}{4 \pi \epsilon_0} \frac{Q^2}{L^2}$

Text Solution

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The correct answer is:

The position of the balls in the satellite will become as shown below

Thus angle θ θ = 180° and Force $= \frac{1}{4 \pi \epsilon_0} \cdot \frac{Q^2}{(2L)^2}$

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