Question

question 20 of 25
which of the following are factors that determine the size of the electric potential and of electric potential energy?
a. mass and distance
b. charge and distance
c. mass and charge
d. charge and density

Explanation:

Step1: Recall electric - potential formula

The electric potential \(V\) due to a point - charge \(Q\) at a distance \(r\) from it is given by \(V=\frac{kQ}{r}\), where \(k\) is the electrostatic constant. It depends on the charge \(Q\) and the distance \(r\).

Step2: Recall electric - potential energy formula

The electric potential energy \(U\) of a charge \(q\) in the electric potential \(V\) is \(U = qV=\frac{kQq}{r}\). It also depends on the charges \(Q\) and \(q\) and the distance \(r\) between them.

Answer:

B. Charge and distance