AP EAMCET · PHYSICS · Electrostatics
Three charges \(\mathrm{Q},+\mathrm{q}\) and \(+\mathrm{q}\) are placed at the vertices of a right angled isoscels triangle as shown in the figure. If the net electrostatic potential energy of the system is zero, the value of \(Q\) is
- A \(\begin{aligned} & \frac{-2 q}{2+\sqrt{2}} \end{aligned}\)
- B \(\begin{aligned} &\frac{+q}{2+\sqrt{2}}\end{aligned}\)
- C \(\begin{aligned} & \frac{+2 q}{2+\sqrt{2}}\end{aligned}\)
- D \(\begin{aligned} & \frac{-q}{2+\sqrt{2}}\end{aligned}\)
Answer & Solution
Correct Answer
(A) \(\begin{aligned} & \frac{-2 q}{2+\sqrt{2}} \end{aligned}\)
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