First of all, the attraction and repulsion between charges are related to distance.
In physics, the force between charges, whether attraction or repulsion, is related to the distance between them. The acting force decreases with the increase of distance and increases with the decrease of distance. This relationship can be described by Coulomb's law, that is, the force is inversely proportional to the square of distance and directly proportional to the product of charge.
This means that if the distance between two charges is doubled, the force between them will be reduced by four times; On the contrary, if the distance is reduced by half, the force will increase by four times. The attraction and repulsion between charges are closely related to the distance between them.
Second, the attraction and repulsion between charges are related to the amount of charges.
In addition to the distance, the attraction and repulsion between charges are also related to the amount of charges. The greater the charge, the greater the force. This relationship is direct and does not need to be described by any complicated mathematical formula.
This is a measure of how much charge is present. As the charge of a charged body increases, the interaction with other charged bodies will naturally increase. The attraction and repulsion between charges are directly related to the amount of charge.
Third, the attraction and repulsion between charges are related to the positive and negative of electricity.
There are different ways of interaction between positive and negative charges, that is, there are attractive forces between positive and negative charges and repulsive forces between charges of the same nature. Coulomb's law applies to charges of the same nature, that is, like charges repel and opposite charges attract. The attraction and repulsion between charges are also related to positive and negative charges.
4. The attraction and repulsion between charges are related to the dielectric.
Dielectric has an effect on the force between charges. In this case, the presence of dielectric will lead to the increase or decrease of the force. In vacuum, the interaction between charges at two stationary points can be accurately calculated by Coulomb's law.
In dielectric, this force will be different due to the change of electric field and the polarization effect of dielectric. When studying the interaction between charges, we need to consider the influence of dielectric.