Magnetic Field Force on Parallel Moving Charges

Click For Summary
SUMMARY

Magnetic fields do not exert a force on charges or currents moving parallel to the field due to the lack of variation in the field strength experienced by the moving charge. When a charged particle moves parallel to a magnetic field, it does not encounter any change in the intensity of that field, resulting in no energy transfer. This principle is rooted in the fundamental behavior of magnetic fields and their interaction with moving charges.

PREREQUISITES
  • Understanding of electromagnetic theory
  • Familiarity with Lorentz force law
  • Knowledge of magnetic field concepts
  • Basic principles of charged particle dynamics
NEXT STEPS
  • Study the Lorentz force law in detail
  • Explore the concept of magnetic field lines and their orientation
  • Investigate the effects of magnetic fields on charged particles in different orientations
  • Learn about electromagnetic induction and its applications
USEFUL FOR

Students of physics, educators teaching electromagnetism, and researchers exploring the behavior of charged particles in magnetic fields.

lizdrotos
Messages
2
Reaction score
0
Why don't magnetic fields not force to charges/currents that are moving parallel to the field?

Does it have something to do with the orientation of the field created by the moving charge in relation to the field it is in?

I know the answer of this question may not be clear yet, but are there any theories?
 
Physics news on Phys.org
You use a double negative in the first part of your sentence that is confusing (do not and not), but I think I understand your question.

Magnetic fields transfer energy to objects by variation of the field strength. If the sensing element (say a charged particle) moves parallel to the field it, by definition of parallel, will not experience any change in the intensity of the magnetic field. No variation, no transfer of energy.

Ok you guys out there; did I get that right?
 

Similar threads

Undergrad Charge movement relative to magnetic field frame dependence/invariance
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad Question on Hall Effect and magnetic force
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad The vector math of relative motion of wire-loop & bar magnet
  • · Replies 1 ·
Replies
1
Views
2K
High School Why Does My Toaster Hum Due to AC-Induced Magnetic Forces?
  • · Replies 22 ·
Replies
22
Views
2K
Undergrad Railgun: Significant magnetic field where projectile is?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Question on the Lorentz force: Why is the force not F=q(v×B) = F=qv×qB
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Hall effect -- is it always applicable?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Magnetic field as result of length contraction
  • · Replies 20 ·
Replies
20
Views
5K
High School Force Exerted on a Conductor by a Homogeneous Magnetic Field
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Does displacement current create a magnetic field? And Lorentz force?
  • · Replies 10 ·
Replies
10
Views
2K