🗒
Coulomb’s Law
1 q1 × q2
F=
4πϵ0 r 2
ϵ0 = 8.854 × 10−12 C 2 N −1 m−2
1
∼ 9 × 109 Nm2 C −2
4πϵ0
1 q1 q2
F12 = × e^12
4πϵ0 r 2
1 q1 q2
F12 = × r 12
4πϵ0 r 3
Coulomb’s Law 1
, Example of the inverse square law
Coulomb’s Law 2
, 🗒
The Electric Field
1 Q
E= × 2 × e^r
4πϵ0 r
1 Q
E= × 3 × r^
4πϵ0 r
Units of E are N
C or V
m
The Electric Field 1
, Length - strength of field
Direction - field direction
Concentric and radii increases in equal steps
The Electric Field 2
Coulomb’s Law
1 q1 × q2
F=
4πϵ0 r 2
ϵ0 = 8.854 × 10−12 C 2 N −1 m−2
1
∼ 9 × 109 Nm2 C −2
4πϵ0
1 q1 q2
F12 = × e^12
4πϵ0 r 2
1 q1 q2
F12 = × r 12
4πϵ0 r 3
Coulomb’s Law 1
, Example of the inverse square law
Coulomb’s Law 2
, 🗒
The Electric Field
1 Q
E= × 2 × e^r
4πϵ0 r
1 Q
E= × 3 × r^
4πϵ0 r
Units of E are N
C or V
m
The Electric Field 1
, Length - strength of field
Direction - field direction
Concentric and radii increases in equal steps
The Electric Field 2
