each another. Repulsion is
shown by vectors pointing
away from each other.
Simple, right?Superposition
Consider three point charges: q 1 , q 2 , and q 3. The total electric force acting on, say,
q 2 is simply the sum of F1-on-2 (the electric force on q 2 due to q 1 , and F3-on-2 (the
electric force on q 2 due to q 3 ).
Fon 2 = F1-on-2 + F3-on-2