Calculate Displacement Current from Electric Flux Density

  • #1
JustStudying
27
0

Homework Statement


If electric flux density (D) is given by the vector (xy,yz,xz) then calculate the displacement current density


Homework Equations


Jd = dD/dt


The Attempt at a Solution


if you differentiate D, in terms of t, then you just get 0..but that apparently isn't the answer
 

Answers and Replies

  • #2
lazyaditya
176
7
If you are getting a "0" as differentiation of electric flux density that means that electric flux density is not changing with time,which means it is electrostatic and not time varying field. You can see this from an example, by keeping D.C voltage across capacitor the current in circuit becomes zero eventually this is because voltage is constant or of zero frequency. So if you don't have a time varying electric flux density there won't be displacement current.
 
  • #3
lazyaditya
176
7
If you are getting a "0" as differentiation of electric flux density that means that electric flux density is not changing with time,which means it is electrostatic and not time varying field. You can see this from an example, by keeping D.C voltage across capacitor the current in circuit becomes zero eventually this is because voltage is constant or of zero frequency. So if you don't have a time varying electric flux density there won't be displacement current.

This is what i think!
 

Suggested for: Calculate Displacement Current from Electric Flux Density

Replies
1
Views
791
Replies
12
Views
4K
Replies
9
Views
2K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
0
Views
3K
  • Last Post
Replies
1
Views
1K
Replies
7
Views
10K
Top