Potential difference, electric potential energy and work

  • Thread starter r_swayze
  • Start date
  • #1
r_swayze
66
0
Four charges are arranged at the corners of a rectangle as shown in the diagram. How much work needs to be done to move the charge q2 to infinity?

Since change in PEe = W, am I suppose to find total potential electric energy of the four charges and then subtract the total potential electric energy of the three charges without q2? Would the difference in the two potential electric energies be the work it takes to move q2 to infinity?
 

Attachments

  • Capture.PNG
    Capture.PNG
    3.3 KB · Views: 417

Answers and Replies

  • #2
willem2
2,085
346
Four charges are arranged at the corners of a rectangle as shown in the diagram. How much work needs to be done to move the charge q2 to infinity?

Since change in PEe = W, am I suppose to find total potential electric energy of the four charges and then subtract the total potential electric energy of the three charges without q2? Would the difference in the two potential electric energies be the work it takes to move q2 to infinity?

That would work, but it's easier to calculate the potential from the 3 non-moving charges at the position where q2 is.
 

Suggested for: Potential difference, electric potential energy and work

Replies
2
Views
17K
Replies
2
Views
12K
  • Last Post
Replies
1
Views
626
Replies
7
Views
6K
Replies
1
Views
4K
Replies
3
Views
3K
Replies
3
Views
2K
Replies
2
Views
2K
Replies
2
Views
3K
Top