For the arrangement below, points A and B are at apotential of 20 V, and point C is at 10 V. The electric fieldin this region is constant.
What is the amount of energy needed to transport 4 C of chargefrom point C to point A?
0 joules
20 joules
40 joules
45 joules
80 joules
I B I A C 2.0 cm E