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Two equal point charges each of charge 'q' are placed at a distance of 2a from each other and a third charge -2q in placed at the mid point between them. The potential energy of the system is: |
$\frac{q}{8 \pi \varepsilon_0 a}$ $\frac{6 q^2}{8 \pi \varepsilon_0 q}$ $\frac{-7 q^2}{8 \pi \varepsilon_0 a}$ $\frac{-9 q^2}{8 \pi \varepsilon_0 a}$ |
$\frac{-7 q^2}{8 \pi \varepsilon_0 a}$ |
The correct answer is Option (3) → $\frac{-7 q^2}{8 \pi \varepsilon_0 a}$ |
