Magnetic Lorentz Force: Questions & Answers

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Discussion Overview

The discussion revolves around the Magnetic Lorentz force, specifically addressing questions about its role in electromagnetic induction and the frame of reference for charged particle motion in a magnetic field. Participants explore theoretical concepts and practical implications related to these topics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether the Lorentz force is responsible for electromagnetic induction and why current is not induced in a uniform magnetic field.
  • Another participant asserts that the Lorentz force is indeed related to electromagnetic induction, referencing the definition of induction and Maxwell's equations.
  • There is a discussion about the frame of reference for the motion of charged particles, with one participant stating that it is relative to any inertial frame.
  • Concerns are raised about the specifics of charge carriers involved in induction, with a suggestion to clarify whether free electrons in a vacuum are being referenced.
  • One participant mentions Hall probes as a counterpoint to the claim that current is not induced in a uniform magnetic field.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between the Lorentz force and electromagnetic induction, as well as the conditions under which current is induced in a magnetic field. The discussion remains unresolved with multiple competing perspectives.

Contextual Notes

There are limitations regarding the assumptions made about the motion of charged particles and the definitions of terms like "uniform magnetic field" and "charge carriers." The discussion does not resolve these ambiguities.

TIBIN DANIEL BIJU
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Magnetic Lorentz force is the force experienced by any charged particle moving in a magnetic field.i want to clarify some doubts regarding this topic of Magnetic Lorentz force.some of them are:
1. Is it the Lorentz force that is actually responsible for the phenomenon of electromagnetic induction.if yes..they why does current is not induced while moving in uniform magnetic field.
2.Lorentz force is given as F=q(v*B). since all motion is relative ,what should be the frame of reference of the motion that we should consider in the motion of the charged particle.what is the motion of charged particle relative to..
PLEASE give an answer to these humble doubts of this beginner ...
 
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TIBIN DANIEL BIJU said:
2.Lorentz force is given as F=q(v*B). since all motion is relative ,what should be the frame of reference of the motion that we should consider in the motion of the charged particle.what is the motion of charged particle relative to
It is relative to any inertial frame. The same equations work in any inertial frame.
 
thank you sir. can you give me an answer for my first question..
 
TIBIN DANIEL BIJU said:
Magnetic Lorentz force is the force experienced by any charged particle moving in a magnetic field.i want to clarify some doubts regarding this topic of Magnetic Lorentz force.some of them are:
1. Is it the Lorentz force that is actually responsible for the phenomenon of electromagnetic induction.if yes..they why does current is not induced while moving in uniform magnetic field.

What do you mean by this? Wiki states "Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field". So the third Maxwell's law:

##\vec{\nabla}\times\vec{E}=-\partial_t\vec{B}##

is responsible for induction. You probably want to talk about motion of charge carriers. Then you need to specify which charge carriers you mean. Free-electrons in vacuum?

Also, about current being induced as a result of motion in magnetic field. What about Hall probes?
 
TIBIN DANIEL BIJU said:
Why does current is not induced while moving in uniform magnetic field?
Current is induced in a conductor moving in a uniform magnetic field.
 

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