# Calculate Displacement Current from Electric Flux Density

1. Oct 8, 2013

### JustStudying

1. The problem statement, all variables and given/known data
If electric flux density (D) is given by the vector (xy,yz,xz) then calculate the displacement current density

2. Relevant equations
Jd = dD/dt

3. 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

2. Oct 16, 2013