When a Positive Charge Q Is Placed in the Field

Multiple Choice

When a positive charge q is placed in the field created by two other charges Q₁ and Q₂, each a distance r away from q, the acceleration of q is

A) in the direction of the charge Q₁ or Q₂ of smaller magnitude.
B) in the direction of the charge Q₁ or Q₂ of greater magnitude.
C) in the direction of the negative charge if Q₁ and Q₂ are of opposite sign.
D) in the direction of the positive charge if Q₁ and Q₂ are of opposite sign.
E) in a direction determined by the vector sum of the electric fields of Q₁ and Q₂.