- #1
Jamesdn
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- Homework Statement
- electric field
- Relevant Equations
- electric field
I couldn't solve the question. Can you help me?
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Electric field produced by a uniform charge density on a wall
- Thread starter Jamesdn
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In summary, the conversation is about a person struggling to solve a question and asking for help in a homework-help forum. They are reminded to show their own attempt at a solution first and given a hint about an incorrect formula they are using. The person is also directed to a resource on Gauss' law for further understanding. It is emphasized that direct answers cannot be given and only hints can be provided.
I couldn't solve the question. Can you help me?
- #2
cnh1995
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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.
While posting in the homework-help forum, you need to show your own attempt at a solution first.
- #3
Jamesdn
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cnh1995 said:
I'm not sure about the answer
- #4
cnh1995
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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.
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.
- #5
Jamesdn
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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
- #6
cnh1995
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Check this explanation on hyperphysics.
https://www.google.com/url?sa=t&sou...FjAAegQIBxAB&usg=AOvVaw05zj9yGCNXGAGE8Gfzwsfl.
https://www.google.com/url?sa=t&sou...FjAAegQIBxAB&usg=AOvVaw05zj9yGCNXGAGE8Gfzwsfl.
- #7
Jamesdn
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tnx for help
What is an electric field?
An electric field is a physical quantity that describes the force exerted on a charged particle at any given point in space. It is represented by a vector and is measured in units of Newtons per Coulomb (N/C).
How is an electric field produced by a uniform charge density on a wall?
An electric field is produced by a uniform charge density on a wall when there is a concentration of positive or negative charges on the surface of the wall. This creates an imbalance of charges, resulting in an electric field that extends from the wall into the surrounding space.
What factors affect the strength of the electric field produced by a uniform charge density on a wall?
The strength of the electric field produced by a uniform charge density on a wall is affected by the magnitude of the charge on the wall, the distance from the wall, and the dielectric constant of the surrounding medium. The electric field strength is directly proportional to the charge and inversely proportional to the distance and dielectric constant.
How is the direction of the electric field determined in this scenario?
The direction of the electric field produced by a uniform charge density on a wall is determined by the direction of the force that would be exerted on a positive test charge placed at that point. The electric field lines always point away from positive charges and towards negative charges.
What is the mathematical formula for calculating the electric field produced by a uniform charge density on a wall?
The electric field produced by a uniform charge density on a wall can be calculated using the formula E = σ/ε₀, where E is the electric field strength, σ is the surface charge density on the wall, and ε₀ is the permittivity of free space.
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