Question about right hand rule (magnetism)

Click For Summary

Discussion Overview

The discussion revolves around the application of the right hand rule (RHR) in magnetism, specifically regarding whether it is limited to cases where the vectors involved (magnetic field, force, and current) are orthogonal to each other or if it can be applied in other scenarios as well. The scope includes conceptual clarification and technical reasoning related to magnetism.

Discussion Character

  • Conceptual clarification, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions if the right hand rule is only applicable when the magnetic field, force, and current vectors are orthogonal.
  • Another participant asks for clarification on situations where the vectors are not orthogonal.
  • A different participant argues that the vectors are not always orthogonal, referencing the formula for magnetic force, F = qvB sin(theta), which indicates that the angle between the velocity vector and the magnetic field can vary.
  • One participant provides an example involving a wire with current, suggesting that while the force can act at any angle, only the component of the force that is orthogonal to the current contributes to the magnetic field, which is also orthogonal to both the current and that component of the force.

Areas of Agreement / Disagreement

Participants express differing views on the applicability of the right hand rule in non-orthogonal scenarios, indicating that the discussion remains unresolved with multiple competing perspectives.

Contextual Notes

The discussion touches on the dependence of the right hand rule's applicability on the orientation of vectors and the implications of the sine function in the magnetic force formula, but these aspects remain unresolved.

gokuls
Messages
35
Reaction score
0
Is the right hand rule for determining the direction of the magnetic field, force, and current only used when the aforementioned vectors are orthogonal to each other? Or, can the RHR be used in other cases as well?
 
Physics news on Phys.org
When aren't they orthogonal?
 
They're not always orthogonal I think. The formula for the magnetic force on a charged particle:
F = qvB sin(theta). The sin is the angle between the velocity vector of the charged particle and the magnetic field, and it doesn't have to be 90.
 
Example: A wire with current going through it has a force applied to it which makes it move. The force could be at any angle but only the portion of the force which is orthogonal to the current will make a magnetic field (which is orthogonal to both the current and the portion of force which is orthogonal to the current.

I hope that makes sense.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 8 ·
Replies
8
Views
8K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 32 ·
2
Replies
32
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K