Well you mean Coulomb's law, the equivalent of Newton's law for electrostatic?
From Wikipedia:
The magnitude of the electrostatic force between two point electric charges is directly proportional to the product of the magnitudes of each of the charges and inversely proportional to the square of the total distance between the two charges.
opposite charges attract each other.
like charges repel each other.
l4 Chin4
Its called electro-static force. It is inversely proportional to the distance between the 2 objects squared.
electrostatic
repulsive
The electric force between two charged objects is influenced by the distance between them.
Less distance --> more force.
-- the product of the magnitudes of the charges on the objects -- the distance between the 'center of charge' of the two objects
In contrast to the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object. This repulsive force will push the two objects apart.
Coulomb's law
The electric force between two charged objects is influenced by the distance between them.
The electrostatic force between two charged objects is inversely proportional to the distance of separation between the two objects. An Increase in the separation distance between objects decreases the force of attraction or repulsion between the objects.
weaker as square of distance
Less distance --> more force.
When the charges are the same
The electric force between two charged objects is decreased by a factorof 4 if you double the distance between the objects, from the formulaF=(q1*q2)/(4*Pi*Eo*r^2).
The electric force between two charged objects is decreased by a factorof 4 if you double the distance between the objects, from the formulaF=(q1*q2)/(4*Pi*Eo*r^2).
-- the product of the magnitudes of the charges on the objects -- the distance between the 'center of charge' of the two objects
In contrast to the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object. This repulsive force will push the two objects apart.
Coulomb's law
The interaction between charged objects is a non-contact force that acts over force of attraction between two balloons that are charged with the opposite type.
the magnitude of the force decreases