|
Tutorials on electric forces with examples and explanations.
Electric ForcesElectric charges of the same sign repel each other and charges of opposite signs attract each other.Charges of opposite signs ![]() Both charges are positive ![]() Both charges are negative ![]()
Coulomb's LawThe forces on two charges of opposite signs for example, separated by a distance r are quantified by Coulomb's law as follows:![]()
More Than Two ChargesIn the example below, there are more than two charges: $q_1$ positive and $q_2$ and q3 negative. There are two forces acting on q1 and the resultant force is the sum of the forces $F_1$ + $F_3$ (addition of vectors since the forces are represented by vectors)![]() |