Problem with Net Coulombic Force

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Homework Help Overview

The problem involves a charged particle placed within an n-dimensional solid sphere that has a uniform charge density. The task is to determine the net Coulombic force experienced by the particle when it is located at a distance from the center of the sphere, specifically when that distance is less than the radius of the sphere.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants express uncertainty about the meaning and implications of a 12-dimensional sphere with uniform charge density. There are questions regarding the origin of the problem and its feasibility.

Discussion Status

The discussion is ongoing, with participants seeking clarification on the problem's context and expressing confusion about the mathematical formulation. Some participants have pointed out issues with LaTeX formatting, and there is a request for further assistance without a clear consensus on how to proceed.

Contextual Notes

Participants note the specific values given in the problem, including the dimensions, charge quantities, and distances involved. There is an emphasis on the need for understanding the problem setup rather than solving it directly.

Better WOrld
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Homework Statement


Consider an ## n ##-dimensional solid sphere of radius ##R##, with uniform charge-density and a total charge ##Q##. A charged particle ##q## is kept at a distance of ##r## from the center. For ##r<R##, what is the Net Coulombic Force experienced by the particle?

If it is in the form of

$$\displaystyle\vec{F_{c}}= \left(\dfrac{\color{blue}{m}}{\color{blue}{p}.\varepsilon_{0}}\right).\left(\dfrac{(\color{blue}{a}+2)!}{\left(\Gamma\left(\dfrac{\color{blue}{b}}{\color{blue}{c}}\right)\right)^{\color{blue}{x}}.\color{blue}{w^{y}}}\right)$$
Find ##\color{blue}{ m+p+a+b+c+w+x+y}##

Details and Assumptions:

  • ##n=12##, ##Q=10 \text{ C}##, ##q=1.4 \text{ C}##, ##r=5 \text{ cm}##, ##R=13\text{ cm}##.
  • All the letters represent integers and are not necessarily distinct. ##m## and ##n##, ##b## and ##c## are coprime.
  • ##\varepsilon_{0}## is the constant of permittivity of free space.

Homework Equations

The Attempt at a Solution



A friend of mine had discovered this question somewhere on the Net. Unfortunately neither of us has any idea as to how to solve this problem. I think it involves Calculus to a degree,but I really don't know anything else about it. I would be truly grateful if somebody could kindly give me a full solution. Many, many thanks in advance!

PS. I just cannot understand why the LaTeX is not working. I'm really sorry for that.
 
Last edited:
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Better WOrld said:
Consider an ## n ##-dimensional solid sphere of radius ##R##, with uniform charge-density and a total charge ##Q##.
A 12-dimensional sphere with uniform charge density? I have no idea what that even means.

Where did you get this problem?
 
Doc Al said:
A 12-dimensional sphere with uniform charge density? I have no idea what that even means.

Where did you get this problem?

Sir, a friend of mine had come across this problem. I'm afraid I don't know where he found it.
 

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