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Three identical spheres, each having a charge \( q \) and radius \( R \), are kept in such a way that each touches the other two. The magnitude of the electric force on any sphere due to the other two is
(1) \( \frac{1}{4 \pi \varepsilon_{0}}\left(\frac{q}{R}\right)^{2} \)
(2) \( \frac{\sqrt{3}}{4 \pi \varepsilon_{0}}\left(\frac{q}{R}\right)^{2} \)
(3) \( \frac{\sqrt{3}}{16 \pi \varepsilon_{0}}\left(\frac{q}{R}\right)^{2} \)
(4) \( \frac{\sqrt{5}}{16 \pi \varepsilon_{0}}\left(\frac{q}{R}\right)^{2} \)
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