Here's why:
* Coulomb's Law: This law states that the force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Mathematically:
F = k * (q1 * q2) / r^2
Where:
* F is the force
* k is Coulomb's constant
* q1 and q2 are the magnitudes of the charges
* r is the distance between the charges
* Unlike Charges Attract: The key is the sign of the charges (q1 and q2). When the charges have opposite signs (one positive, one negative), the product of the charges (q1 * q2) will be negative.
* Force Direction: A negative force in Coulomb's Law indicates an attractive force.
In summary: Coulomb's Law, through the product of the charges, automatically accounts for the attractive nature of unlike charges.
