Electric field produced by a uniform charge density on a wall

AI Thread Summary
To solve the problem of the electric field produced by a uniform charge density on a wall, it's essential to apply the correct formula derived from Gauss's law. The discussion highlights that the initial attempt at a solution was incorrect both numerically and dimensionally, particularly regarding the unit of electric field. Participants emphasize the importance of showing one's own work when seeking help in homework forums. They encourage referencing lecture notes for the relevant equations and suggest using resources like HyperPhysics for further clarification. Understanding the principles of Gauss's law is crucial for accurately determining the electric field in this scenario.
Jamesdn
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Homework Statement
electric field
Relevant Equations
electric field
103951568_2615649302029582_4894135755977766173_n.png

I couldn't solve the question. Can you help me?
 
Last edited by a moderator:
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Welcome to PF!
While posting in the homework-help forum, you need to show your own attempt at a solution first.
 
cnh1995 said:
Welcome to PF!
While posting in the homework-help forum, you need to show your own attempt at a solution first.
1591877785065.png

I'm not sure about the answer
 
You are using an incorrect formula. This is why your answer is both numerically and dimensionally incorrect. The unit of electric field is not C/m2.

You have an infinite plane with a uniform surface charge density. The electric field at a point near such plane is given by a standard equation.
If you have covered Gauss' law in class, that equation should be in your lecture notes. Can you find that equation?

We cannot give direct answers here. All we can do is point out mistakes and provide hints.
 
1591878871434.png

This is the equation we deal with in Gauss's law. We didn't solve an example of this question, so I can't understand
 
tnx for help
 

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