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SUMMARY

This discussion focuses on the relationship between polarization (Polarization Vector Field) and magnetization (Magnetization Vector Field) in the context of vector fields \(\vec{D}\), \(\vec{E}\), \(\vec{B}\), and \(\vec{H}\). The equations used include \(D = \epsilon E\) and \(H = \frac{1}{\mu} B\), with \(\epsilon = \epsilon_0(1 + \chi_e)\) and \(\mu = \mu_0(1 + \chi_m)\). The user successfully derived the equations \(P = D - \epsilon_0 E\) and \(M = \chi_m H\), confirming the correct approach to understanding these electromagnetic concepts.

PREREQUISITES
  • Understanding of electromagnetic theory, specifically Maxwell's equations
  • Familiarity with vector calculus and field theory
  • Knowledge of material properties such as permittivity (\(\epsilon\)) and permeability (\(\mu\))
  • Basic grasp of polarization and magnetization concepts in electromagnetism
NEXT STEPS
  • Study the derivation of Maxwell's equations in different media
  • Learn about the physical significance of the polarization vector \(P\) and magnetization vector \(M\)
  • Explore the implications of linear and nonlinear materials on electromagnetic fields
  • Investigate the role of susceptibility (\(\chi\)) in material response to electric and magnetic fields
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Students and professionals in physics and engineering, particularly those specializing in electromagnetism, material science, and electrical engineering. This discussion is beneficial for anyone seeking to deepen their understanding of vector fields and their interactions in electromagnetic theory.

ParticleGinger6
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Homework Statement
Maxwell's Equation in matter reduces to Maxwell's equation in vacuum if polarization and magnetization are zero?
Relevant Equations
They can be found in the attached photo
I do not know where to start.
 

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How are polarization (i.e. the Polarization Vector Field) and magnetization (i.e. Magnetization Vector Field)\\ related to the vector fields \vec D , \vec E, \vec B, and \vec H?
 
@robphy so i found the equations D = epsilon*E and H = (1/mu)*H where epsilon = epsilon(not)*(1+Xe) and mu = mu(not)*(1+Xe). I think if I use that convert D into terms of P which would look like P = D - epsilon(not)*E and H = B/(mu(not)*(1+Xe)). From there you can get Magnetization from M = Xm*H

Am I on the right track
 
Yes... but use \epsilon_0 and \mu_0 instead of the \chis.
 
@robphy I believe I figured it out. So by using D = epsilon(not)E + P and H = B/mu(not) - M I was able to get to
dell * E = rou/epsilon(not) and dell cross B = mu(not)*J + mu(not)*epsilon(not)*(curly(d)*E/curly(d)t) for part a
Then for part b
I used P = epsilon(not)*X*E to get dell*E = rou/epsilon(not)
I used M = Xm*H to get dell cross B = mu(not)*J + mu(not)*epsilon(not)*(curly(d)*E/curly(d)t)
Both assuming mu approaches mu(not) and epsilon approaches epsilon(not)
 

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