Two similar tiny balls of mass $m$, each carrying charge $q$ are hung from silk thread of length $l$ as shown in Fig. These are separated by a distance $x$ and angle $2 \theta \sim 10$. Then for equilibrium :-
Two similar tiny balls of mass $m$, each carrying charge $q$ are hung from silk thread of length $l$ as shown in Fig. These are separated by a distance $x$ and angle $2 \theta \sim 10$. Then for equilibrium :-
- A
$x = 2l$
- B
$x = \frac{{l{q^2}}}{{4\pi {\varepsilon _0}mg}}$
- C
$x = {\left( {\frac{{{q^2}mg}}{{4\pi {\varepsilon _0}}}} \right)^{\frac{1}{2}}}$
- D
$x = {\left( {\frac{{{q^2}l}}{{2\pi {\varepsilon _0}mg}}} \right)^{\frac{1}{3}}}$
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