A uniform electric field with a magnitude of 1200 N/C points in the negative x direction,...

A uniform electric field with a magnitude of 1200 N/C points in the negative x direction, as shown in Figure 20-20.

FIGURE 20-20 Problem

(a) What is the difference in electric potential, ΔV = VB — VA, between points A and B? (b) What is the difference in electric potential, ΔV = VB — VC, between points B and C? (c) What is the difference in electric potential, ΔV = VC — VA, between points C and A? (d) From the information given in this problem, is it possible to determine the value of the electric potential at point A? If so, determineVA; if not, explain why.