25. three positive charges a, b, and c, and a negative charge d are placed in a line as shown in the diagram. all four charges are of equal magnitude. the distances between a and b, b and c, and c and d are equal. (ref: p.553-561)
a. which charge experiences the greatest net force? which charge experiences the smallest net force?
b. find the ratio of the greatest to the smallest net force.

Bag of bolts weight 29.4n

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.