Given Two Point Charges, Find the charge at Point 0 as x,y

  • Thread starter vr0nvr0n
  • Start date
  • #1
20
0

Homework Statement


Two point charges are placed on the x axis. The first charge, q1 = 8.00 nC , is placed a distance 16.0 m from the origin along the positive x axis; the second charge, q2 = 6.00 nC , is placed a distance 9.00 m from the origin along the negative x axis.

Photo shown by problem:
http://imgur.com/mmQtBk0

Find the electric field at the origin, point O.
Give the x and y components of the electric field as an ordered pair. Express your answer in newtons per coulomb to three significant figures. Keep in mind that an x component that points to the right is positive and a y component that points upward is positive.

Homework Equations


Presumably, E=(q/r^2)k

The Attempt at a Solution


What I can't seem to manage here is the Y component. I have used the relevant equation above and calculated the negative side and the positive side and subtracted the magnitude of the negative from the magnitude of the positive to find the X component at 0. But, I don't even see what I would use in the problem to find the charge along the Y component. I really want to understand this. Any advisement would be appreciated.
 

Attachments

Answers and Replies

  • #2
20
0
Sorry, I don't know why the photo isn't working. Here is the photo again:

1011305A.jpg
 
  • #3
950
418
components are "components", that is, parts of the whole. You don't have to go looking for hidden or separate y pieces. At the origin (or any other point in space for that matter) the electric field vector from each charge only points one direction. You seem to have correctly identified which way that is. Well then, how much of each electric field vector is along x and how much is along y? (0 is a perfectly good number)
 
  • #4
20
0
Thank you.

There goes old vr0nvr0n, overthinking the problem again!

Thanks again.
 

Related Threads on Given Two Point Charges, Find the charge at Point 0 as x,y

  • Last Post
Replies
8
Views
8K
Replies
0
Views
7K
Replies
1
Views
2K
Replies
1
Views
869
Replies
5
Views
2K
  • Last Post
Replies
2
Views
3K
Replies
2
Views
6K
Replies
5
Views
1K
Top