# Two equal but opposite charges are separated by a distance d. Determine a formula for VBA=VB−VA for points B and A on the line between the charges. Express your answer in terms of the variables q, b, d, and appropriate constants.

Question

Two equal but opposite charges are separated by a distance d.

Determine a formula for VBA=VB−VA for points B and A on the line between the charges.
Express your answer in terms of the variables q, b, d, and appropriate constants.