Electrostatics - hollow charged sphere

AI Thread Summary
In electrostatics, the electric field within a charged conductor is zero, and the field is perpendicular to the surface. For a hollow charged sphere, the electric field inside the hollow area is also zero. This principle is a standard exercise in electrostatics, emphasizing the importance of understanding the underlying concepts. Calculating or reasoning this out independently is crucial for grasping the topic. Engaging with the problem enhances comprehension of electrostatic principles.
JustStudying
Messages
27
Reaction score
0
So we have a cross sectoin of a sphere that is charged with Q (refer to attachment). electrostatics say the electric field within a charged conductor is 0, and the electric field is perpendicular to the surface.

But for a hollow charged sphere (like in the attachment), does the hollow area within the sphere have a electric field of 0 too?
 

Attachments

  • physicsforumq.png
    physicsforumq.png
    2.5 KB · Views: 650
Physics news on Phys.org
Good question - how would you go about finding out?

No ... seriously... this is a standard exercise in electrostatics.
It is important to your understanding for you to do the calculation (or reason it out) for yourself.
 

Thread 'Maxwell stress tensor'

This is from Griffiths' Electrodynamics, 3rd edition, page 352. I am trying to calculate the divergence of the Maxwell stress tensor. The tensor is given as ##T_{ij} =\epsilon_0 (E_iE_j-\frac 1 2 \delta_{ij} E^2)+\frac 1 {\mu_0}(B_iB_j-\frac 1 2 \delta_{ij} B^2)##. To make things easier, I just want to focus on the part with the electrical field, i.e. I want to find the divergence of ##E_{ij}=E_iE_j-\frac 1 2 \delta_{ij}E^2##. In matrix form, this tensor should look like this...
View full post »
Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Please can anyone either:- (1) point me to a derivation of the perpendicular force (Fy) between two very long parallel wires carrying steady currents utilising the formula of Gauss for the force F along the line r between 2 charges? Or alternatively (2) point out where I have gone wrong in my method? I am having problems with calculating the direction and magnitude of the force as expected from modern (Biot-Savart-Maxwell-Lorentz) formula. Here is my method and results so far:- This...
View full post »

Similar threads

I Charging a small metal ball from a charged hollow sphere
Replies
4
Views
1K
B E. Potential Energy: Uniformly Charged Hollow Sphere and Point Charge
Replies
4
Views
1K
I Confusion regarding insulator and conductors
Replies
1
Views
1K
Electric Field inside the material of a hollow conducting sphere
Replies
11
Views
4K
Capacitance of an isolated sphere - solid vs hollow
Replies
1
Views
10K
B Definition of ground potential in infinite sheet charge distributions
Replies
11
Views
2K
Electric Field Shielding: Does a Conductor Shield Inside?
Replies
4
Views
3K
B Can I use this method to charge a metal sphere?
Replies
9
Views
1K
I Confused about work done on charge
Replies
8
Views
1K
I Electric field inside & outside of a spherical shell
Replies
7
Views
1K

Hot Threads

Recent Insights

Back
Top