Two point charges 0.1 mC and 0.05 mC are kept at points (2m, 0, 0) and (-2m, 0, 0) respectively. Calculate the electrostatic potential energy of the system in absence of any external electric field.

Explanation

To calculate the electrostatic potential energy of a system of two point charges, we can use the formula:

\[ U = \frac{k \cdot Q_1 \cdot Q_2}{r} \]

where:
- \( U \) is the electrostatic potential energy,
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