Point charge
Storyboard
A point charge is an idealized model in physics where a charge is concentrated at a single point with no dimensions. It generates an electric field that radiates uniformly outward, decreasing in strength with the square of the distance.
ID:(2074, 'ky')
Electric field of a point charge
Description
Since Gauss's law states that the total flow of electric field through a closed surface is proportional to the enclosed charge, using 11377
:
can be applied to the case of a single surface Surface ($S$) corresponding to a sphere of radius Radius ($r$):
With this you finally obtain:
ID:(11374, 'gm')
Point charge
Description
Calculations
First, select the equation:
to
,
then, select the variable:
to
Symbol
Equation
Solved
Translated
Calculations
Symbol
Equation
Solved
Translated
Variables
Symbol
Text
Variable
Value
Units
Calculate
MKS Value
MKS Units
$r$
r
Radius
m
$\epsilon$
epsilon
Dielectric constant
-
$Q$
Q
Charge
C
$E_p$
E_p
Electric field of a point charge
V/m
$\epsilon_0$
epsilon_0
Electric field constant
C^2/m^2N
ID:(2074, 0)
gphysics.net - Dr. Willy H. Gerber
Palos Verdes, Costa de Corral, Chile
Palos Verdes, Costa de Corral, Chile
