Finding an unknown charge


by kerbyjonsonjr
Tags: charges, coulomb's law
kerbyjonsonjr
kerbyjonsonjr is offline
#1
Sep8-11, 02:21 PM
P: 34
1. The problem statement, all variables and given/known data

A right triangle is shown below. The charge on the right is unknown, but the electric field shown is only in the x direction.
a. What is the unknown charge?
b. What is the magnitude of the electric field?



2. Relevant equations



3. The attempt at a solution
I have no idea how to start this problem. I have just been staring at it for 20 minutes. I would really appreciate any help.
1. The problem statement, all variables and given/known data



2. Relevant equations



3. The attempt at a solution
Attached Thumbnails
unknown charge triangle.jpg  
Phys.Org News Partner Science news on Phys.org
Simplicity is key to co-operative robots
Chemical vapor deposition used to grow atomic layer materials on top of each other
Earliest ancestor of land herbivores discovered
lachy89
lachy89 is offline
#2
Sep9-11, 02:44 AM
P: 18
You have not posted any relevant equations. I think a good starting point would be looking for an equation for the electric field due to a point charge.

As you have explained the electric field is in the -x direction. Would this mean that there is no y component at the point in question?


Register to reply

Related Discussions
Finding an Unknown Charge using Coulomb's Law Introductory Physics Homework 1
Electric Potential-finding unknown charge Introductory Physics Homework 3
Finding an unknown charge in a system of discrete point charges. Introductory Physics Homework 1
Determining 2D position of third particle of unknown charge given two other particles Introductory Physics Homework 4
Coulombs Law with one unknown charge Introductory Physics Homework 6