Coulomb’s Law describes the force between two charged objects. According to the law, the electrostatic force FFF between two point charges q1q_1q1 and q2q_2q2 separated by a distance rrr is given by:
F=ke∣q1q2∣r2F = k_e \frac{|q_1 q_2|}{r^2}F=ker2∣q1q2∣
where:
- kek_eke is Coulomb’s constant, approximately 8.99×109 N m2/C28.99 \times 10^9 \, \text{N m}^2/\text{C}^28.99×109N m2/C2.
- q1q_1q1 and q2q_2q2 are the magnitudes of the charges.
- rrr is the distance between the charges.
The force is attractive if the charges are of opposite signs and repulsive if the charges have the same sign.
