Answer:
Opposite charge
Explanation:
According to Coulomb's law: The magnitude of each of the electric forces with which two point-at-rest charges interact is directly proportional to the product of the magnitude of both charges and inversely proportional to the square of the distance that separates them and has the direction of the line that joins them. If the two charges have the same sign, the electrostatic force between them is repulsive; if they have different signs, the force between them is attractive.