The electric field \( E \) created by a point charge \( Q \) at a distance \( r \) from the charge is given by Coulomb's law, which states:
\[ E = \frac{k \cdot |Q|}{r^2} \]
where \( k \) is Coulomb's constant (\( k \approx 8.99 \times 10^9 \, \text{N
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