In the diagram below, there are two charges of +q and ?q and six points (a throu
ID: 1467064 • Letter: I
Question
In the diagram below, there are two charges of +q and ?q and six points (a through f) at various distances from the two charges.(Figure 1) You will be asked to rank changes in the electric potential along paths between pairs of points. Using the diagram to the left, rank each of the given paths on the basis of the change in electric potential. Rank the largest-magnitude positive change (increase in electric potential) as largest and the largest-magnitude negative change (decrease in electric potential) as smallest.
Explanation / Answer
rank of the potential of any one point and in order they are b > a > c = d > f > e
"from c to d" in this case both c and d are equidistant from both charges and thus have the same potential so moving from c to d causes no change in electric potential
from "c to b" in this case we're moving from 0 potential to the highest potential.
"d to a" must be less than "c to b" because c = b but a < b