| Objective: |
| To show how electric flux density, electric field
and charge density behave in a parallel plate capacitor, optionally
filled with a dielectric. |
| Steps: |
 |
View the configuration in a simpler way. Note where
we will place a dielectric in later steps. |
| |
|
 |
Plot the electric flux density without and with
a dielectric present.
Observe that the electric flux density is constant between the
two plates in both cases. |
| |
|
 |
Find the electric field without and with a dielectric.
The electric field inside the dielectric is not the same as the
electric field in air. |
| |
|
 |
Plot the free charge density at the metal plates
- this is directly related to the charge placed on the plates
and will be the same with or without the dielectric.
With the dielectric added, there are bound charges at the air/dielectric
boundary. |