What Links Electromagnetic Induction and Magnetic Fields?

  • Context: Undergrad 
  • Thread starter Thread starter wierdo
  • Start date Start date
  • Tags Tags
    Emi
Click For Summary
SUMMARY

The discussion centers on the relationship between electromagnetic induction and magnetic fields, specifically addressing why a magnetic field is generated when current flows through a conductor and why a change in magnetic flux induces current in a conductor. It highlights that these phenomena are modeled using Maxwell's equations, which serve as fundamental assumptions in electromagnetism. The conversation also touches on the interrelation between Maxwell's equations and special relativity, suggesting that both frameworks can derive aspects of each other.

PREREQUISITES
  • Understanding of Maxwell's equations
  • Basic knowledge of electromagnetic theory
  • Familiarity with the concept of magnetic flux
  • Awareness of special relativity principles
NEXT STEPS
  • Study Maxwell's equations in detail
  • Explore the principles of electromagnetic induction
  • Investigate the relationship between magnetic flux and induced current
  • Learn about the implications of special relativity on electromagnetism
USEFUL FOR

Physics students, electrical engineers, and anyone interested in the foundational principles of electromagnetism and their applications in modern technology.

wierdo
Messages
1
Reaction score
0
(1)why is magnetic field generated when current is passed through a conductor? :confused:
(2)why is current induced in a conductor by change in magnetic flux? :zzz:
 
Physics news on Phys.org
Nobody knows. It is just something that is observed to happen, and that we know how to model using Maxwell's equations.
 
A slightly different answer is also possible:
http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html#Length_Contraction

In a mathematically consistent theory, what explains what is a matter of taste, because everything is logically related. If we take Maxwell's equations as our fundamental assumptions (ie. not derived), then we can derive the theory of special relativity. On the other hand, if we take special relativity as our fundamental assumption, then we can derive at least some bits of Maxwell's equations. Hence my slightly different answers.
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 16 ·
Replies
16
Views
2K
  • · Replies 9 ·
Replies
9
Views
4K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K