The electric potential \( V \) at a point due to a point charge \( q \) is given by the formula:
\[ V = \frac{k \cdot q}{r} \]
where \( k \) is the electrostatic constant (\( k = 8.99 \times 10^9 \, \text{Nm}^2/\text{C}^2 \)), \( q \) is the charge, and \( r \) is
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