Magnetic field could only affect moving charges?

Click For Summary

Discussion Overview

The discussion revolves around the effects of magnetic fields on charges, specifically questioning whether magnetic fields only influence moving charges. Participants explore the implications of magnetic fields on various systems, including current-carrying wires and permanent magnets.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions if anything other than moving charges is affected by magnetic fields.
  • Another participant explains that a current-carrying wire experiences a force due to the Biot-Savart law and that a current-carrying loop can experience torque related to its magnetic moment, emphasizing that these effects involve moving charges.
  • A third participant adds complexity by discussing the nature of magnetism in permanent magnets, noting that the interaction between moving electrons contributes to the magnetic force, despite the atoms appearing stationary.
  • A later reply expresses gratitude for the responses, indicating engagement with the discussion.

Areas of Agreement / Disagreement

Participants generally agree that magnetic fields affect moving charges, but there is an ongoing exploration of the nuances of how magnetic fields interact with different systems, indicating some level of debate and complexity in understanding.

Contextual Notes

The discussion does not resolve the initial question about the effects of magnetic fields on stationary charges versus moving charges, leaving assumptions and definitions somewhat ambiguous.

yuenkf
Messages
10
Reaction score
0
no other thing is under effect of B ? srry .i m not good in eng , hope u seniors can understd my q. thanks lot..
 
Physics news on Phys.org
A current carrying wire can experience a force given by Biot-Savart law.
A current carrying loop under magnetic field can experience torque which comes under magnetic moment.
$$\tau = M*B$$
But even then in both cases there is a movement of charge(current).
 
Yes.
Incase youre wondering, what we normally consider a "magnet" is a little complicated
Normally electrons orbit around the nucleus in random configurations, while a permanent ferromagnet has electrons all orbitting around the same axis.
Essentially the force we normally experience as magnetism is the interaction between the electrons, that are moving(even though the atoms appear stationary)
 
Last edited:
hmm.. thanks for ur replies... appreciate it much...
 

Similar threads

Undergrad Charge movement relative to magnetic field frame dependence/invariance
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Can nested solenoids trap particles?
  • · Replies 12 ·
Replies
12
Views
686
High School A moving magnet in a linear electric field
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Magnetic field as result of length contraction
  • · Replies 20 ·
Replies
20
Views
5K
Undergrad Hall effect -- is it always applicable?
  • · Replies 7 ·
Replies
7
Views
2K
High School Not sure about the magnetic flux (phi) depending on a cosine function
  • · Replies 9 ·
Replies
9
Views
2K
High School Force Exerted on a Conductor by a Homogeneous Magnetic Field
  • · Replies 1 ·
Replies
1
Views
2K
High School Seeing both B field lines and E field lines at the same time
  • · Replies 22 ·
Replies
22
Views
2K
High School Measuring electric field vs magnetic field
  • · Replies 8 ·
Replies
8
Views
3K
High School Experiment issues (electromagnetism)
  • · Replies 42 ·
2
Replies
42
Views
3K