Magnetic field around spinning sphere

Click For Summary

Homework Help Overview

The discussion revolves around the magnetic field generated by a spinning sphere with a positive charge. Participants are exploring the characteristics of the magnetic field both inside and outside the sphere, particularly in relation to the sphere's angular velocity.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants are attempting to visualize the magnetic field lines and are questioning how to represent them without needing to calculate values. There is a focus on understanding the implications of the sphere's rotation and charge on the magnetic field.

Discussion Status

The discussion is ongoing, with some participants seeking clarification on relevant equations for determining the magnetic field due to moving charges. Others express uncertainty about the necessity of calculations, emphasizing a desire to focus on drawing the magnetic field instead.

Contextual Notes

There appears to be a lack of specific equations provided by the original poster, and some participants are questioning the relevance of certain equations to the task at hand, which is primarily about visual representation rather than computation.

ninjadrummer8
Messages
24
Reaction score
0

Homework Statement



So there's a sphere, and it has a positive charge on it. The sphere is spinning, and the angular velocity vector is pointing up through the top. What does the magnetic field look like inside & outside the sphere?

qu1.jpg

Homework Equations



none

The Attempt at a Solution



This is what I think it looks like outside of the sphere, but I'm not sure what it would look like inside...

qu2.jpg
 

Attachments

  • qu1.jpg
    qu1.jpg
    2.8 KB · Views: 484
Physics news on Phys.org
Which equation do you use to figure out the magnetic B-field due to moving charges (current)? That is certainly a Relevant Equation for this problem.
 
F=qvBsin(theta) ?

I don't see how this is relevant though, since I am not asked to calculate anything, simply draw in the magnetic field lines
 
can anyone tell me if I am thinking about this right? i don't need any equations I just need to be able to draw the magnetic field
 

Similar threads

  • · Replies 11 ·
Replies
11
Views
2K
Replies
23
Views
5K
Replies
12
Views
2K
Replies
9
Views
1K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
2
Views
3K
  • · Replies 19 ·
Replies
19
Views
4K
  • · Replies 9 ·
Replies
9
Views
2K
Replies
14
Views
2K
  • · Replies 4 ·
Replies
4
Views
1K