Here's why:
* Like Charges Repel: Electric charges interact according to Coulomb's Law. This law states that charges with the same sign (both positive or both negative) will repel each other.
* Magnitude of the Force: The strength of the repulsive force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
In summary:
* Identical charges (same sign): Repulsive force
* Opposite charges (different signs): Attractive force
