$A$ certain charge $Q$ is divided into two parts $q$ and $(Q-q)$. How should the charges $Q$ and $q$ be divided so that $q$ and $(Q-q)$ placed at a certain distance apart experience maximum electrostatic repulsion?
- A$Q = 2q$
- B$Q = 3q$
- C$Q = 4q$
- D$Q = q/2$
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