Displacement Current: Difference & Example

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SUMMARY

The discussion clarifies that displacement current is not always equal to conduction current, as it is a component of Maxwell's equations, specifically the Ampere-Maxwell Law. The equation presented in Heaviside-Lorentz units demonstrates the relationship between the magnetic field (B), electric field (E), and total current density (j). The conversation emphasizes the need for context when discussing the equality of these currents, suggesting that examples are crucial for understanding their differences.

PREREQUISITES
  • Understanding of Maxwell's equations
  • Familiarity with electromagnetic theory
  • Knowledge of Heaviside-Lorentz units
  • Basic concepts of electric and magnetic fields
NEXT STEPS
  • Research the Ampere-Maxwell Law in detail
  • Study the concept of displacement current in electromagnetic theory
  • Explore practical examples where displacement current differs from conduction current
  • Learn about the implications of displacement current in circuit theory
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Students of physics, electrical engineers, and anyone interested in advanced electromagnetic theory will benefit from this discussion.

arvindsharma
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Is displacement current always equals to conduction current?if not then can anyone give me an example for it?if yes,then can anyone prove it?
 
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The socalled "displacement current" is a misnomer. It's not a current but it's simply part of one of Maxwell's equations, the Ampere-Maxwell Law, which reads in Heaviside-Lorentz units
$$\vec{\nabla} \times \vec{B}-\frac{1}{c} \partial_t \vec{E}=\frac{1}{c} \vec{j}.$$
This is the "microscopic form" of the law, and ##\vec{j}## is the total current density.

The source of the electromagnetic field are charge and current densities.
 
I think you should tell us some details about the context or background or origin of your question. Do you have a specific example in mind, where the two currents are equal?
 

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