Gaussian Shell and net electric field

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Homework Help Overview

The discussion revolves around calculating the electric field due to a Gaussian shell, specifically addressing the conditions when a point is located inside the shell. Participants are examining the application of relevant equations and constants in their calculations.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the electric field using specific equations and constants, noting that the point of interest is inside the shell. Some participants question the validity of the constants used, particularly Coulomb's constant.

Discussion Status

The discussion is ongoing, with participants reflecting on their calculations and identifying potential errors in the constants used. There is no explicit consensus yet, but some guidance is being offered regarding the correctness of the values applied.

Contextual Notes

Participants are working under the constraints of homework rules, which may limit the information they can share or the methods they can use. There is a focus on ensuring the accuracy of fundamental constants in their calculations.

Jrlinton
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Homework Statement


upload_2017-2-7_10-46-52.png


Homework Equations


σ=q/(4πr^2)→q=σ(4πr^2)
E=q/(4πEod^2)
E=(4πr^2σ)/(4πEod^2)

The Attempt at a Solution


So the first thing that i could include was that the point p was inside Shell 1 and therefor would not be affected by Shell 1.

So it should be a fairly simple plug in the variables sort of problem
E=(4π(.017m)^2*(3.3E-6))/(4π(8.99E-9C)(0.104m-0.024m)^2)
E=16.5757 N/C
 
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Looks ok. Is the answer rejected?
 
I used 899E-9 as Coulomb's constant. I believe that was my mistake.
 
Jrlinton said:
I used 899E-9 as Coulomb's constant. I believe that was my mistake.
That's the one thing I did not check.
 
Silly me.
 

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