Two charges +q each are kept ' 2 a ' distance apart. A third charge -2 q is placed midway…

Physics · Class 12 · CBSE — Electrostatic Potential & Capacitance

1. \(\frac{q^{2}}{8 \pi \varepsilon_{0} a}\)
2. \(-\frac{6 q^{2}}{8 \pi \varepsilon_{0} a}\)
3. \(\frac{-7 q^{2}}{8 \pi \varepsilon_{0} a}\)
4. \(\frac{9 q^{2}}{8 \pi \varepsilon_{0} a}\)

Answer

(C) -7 q^ 2 8 _ 0 a

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