Charge in a spherical conducting shell

[Markv]

Homework Statement

There's a conducting spherical shell with Q = q₂ and V =100v and outter radius R

Homework Equations

V=k*Q/R

The Attempt at a Solution

First I calculate the E field using Gauss law, and I get E=q₂/4*Pi*E₀*r

Integrating the E field to get the potential V y get:

V = q₂/4*pi*E₀*R = 100

And there I get the value of q₂

 

[kuruman]

1. What is the question that the problem poses?
2. What can we do for you?

 

[Markv]

Sorry this is the first time I open a thread and I might haven't been too concise.

Im asked to find the charge in the sphere knowing the inner radius = 0.15m and the outter radius = 0.2

The result I get is 2.22 exp -9 when the correct answer according to my assignment should be 1.67 exp -9 so i don't know where the mistake is.

 

[kuruman]

We can help you find your mistake if you can show us exactly what formula you used and what numbers you put in it.

 

[rwisz]

, which is the charge on the spherical conducting shell. This means that the shell has a total charge of q2 and a potential of 100V at its outer radius. This information can be used to calculate the electric field at any point inside or outside the shell, using the equation E = q2/4*pi*E0*r. Additionally, the potential inside the shell can be found using the equation V = k*Q/r, where Q is the total charge of the shell and r is the distance from the center of the shell. This information can be useful in understanding the behavior of electric fields and potentials in conducting shells, and can be applied to various other scenarios in electromagnetism.