Three point charges \( q, q \&,-2 q \) are placed at the corners of an equilateral triangle of s...

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Three point charges \( q, q \&,-2 q \) are placed at the corners of an equilateral triangle of side ' \( L \) '. Calculate
\( \mathrm{P} \) work done by external force in moving all the charges

W far apart without acceleration
(1) \( \frac{1}{4 \pi \varepsilon_{0}} \frac{3 q^{2}}{L} \)
(2) \( -\frac{1}{4 \pi \varepsilon_{0}} \frac{3 q^{2}}{L} \)
(3) \( \frac{1}{4 \pi \varepsilon_{0}} \frac{5 q^{2}}{L} \)
(4) \( -\frac{1}{4 \pi \varepsilon_{0}} \frac{5 q^{2}}{L} \)
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