- #1

- 741

- 0

## Main Question or Discussion Point

Electrical permittivity...in mathematical terms, i.e I need the derivation...WITHOUT using 'curls'.

Didn't find it online.

Didn't find it online.

- Thread starter dE_logics
- Start date

- #1

- 741

- 0

Electrical permittivity...in mathematical terms, i.e I need the derivation...WITHOUT using 'curls'.

Didn't find it online.

Didn't find it online.

- #2

- 2,463

- 97

- #3

- 4,662

- 5

In mks units, the capacitance of a rectangular capacitor ofThe permittivity of a medium is a constant that is connected to the electrical properties of that medium.Amongst other places it appears in Coulombs law and along with permittivity**( a magnetic constant ) the formula for the speed of light.

where

**The magnetic constant is

- #4

- 2,463

- 97

Thank you Bob I got my mittivity mixed up with eability.I would blame it on the beer but I haven't had one yet.In mks units, the capacitance of a rectangular capacitor ofrelativepermittivitye, separationd, and areaAis

C=e eFarads_{0}A/d

whereeis relative permittivity (unitless)

eis the permittivity of free space, 8.85 x 10_{0}^{-12}Farads per meter.

**The magnetic constant ispermeability.

- #5

- 741

- 0

I'm asking the derivation of permittivity, not relative.

And pls explain a bit of theory also.

And pls explain a bit of theory also.

- #6

Born2bwire

Science Advisor

Gold Member

- 1,779

- 18

- #7

- 200

- 4

- Last Post

- Replies
- 10

- Views
- 38K

- Replies
- 4

- Views
- 2K

- Replies
- 1

- Views
- 745

- Last Post

- Replies
- 1

- Views
- 3K

- Last Post

- Replies
- 1

- Views
- 1K

- Last Post

- Replies
- 7

- Views
- 624

- Last Post

- Replies
- 1

- Views
- 3K

- Last Post

- Replies
- 3

- Views
- 15K