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Definition of COULOMB'S LAW
: a statement in physics: the force of attraction or repulsion acting along a straight line between two electric charges is directly proportional to the product of the charges and inversely to the square of the distance between them
Law formulated by C.-A. de Coulomb that describes the electric force between charged objects. It states that (1) like charges repel each other and unlike charges attract each other, (2) the attraction or repulsion acts along the line between the two charges, (3) the size of the force varies inversely as the square of the distance between the two charges, and (4) the size of the force is proportional to the value of each charge.