How does changing the direction of the charge (positive/negative) influence the force between the two charges?
If both charges are positive, the force will be _________; similarly, if both charges are negative, the force will be the same.
If one charge is positive and another is negative, the force will be ___________.
a
positive; negative
b
negative; positive
c
no change; no change
d
positive; positive
e
negative; negative