- #1
kwozz48
- 1
- 0
Homework Statement
The figure is an edge view of three charged metal electrodes. Let the left electrode be the zero point of the electric po*tential. Assume that Q=100 nC and q=50 nC.
The left electrode has a charge of -q, the middle electrode has a charge of +Q, and the right electrode has a charge of -q. There is 1 cm in between the left electrode, the middle electrode is 1 cm wide, and there is 1 cm between the middle electrode and the right electrode. All of the electrodes have 2.0 cm x 2.0 cm cross section. I apologize for the lack of a visual, I realize this would make it easier.
a.) What are E at 0.5 cm
b.) What are V at 0.5 cm
c.) What are E at 1.5 cm
d.) What are V at 1.5 cm
e.) What are E at 2.5 cm
f.) What are V at 2.5 cm
Homework Equations
E=Q/(e_0*A)
V=Ed
The Attempt at a Solution
If I have the equations that are supposed to be used correct, then getting parts b, d, and f are very simple. You just plug the answer from parts a, c, and e in correct? I can't figure out how to use the first equation to the get the E field at those points. Any explanation of this problem you can give me would be much appreciated. I need to understand it and be able to work it, not just know the answer. Thanks a lot.