Current And Resistance Flashcards
0
Q
Vd
A
Drift speed
1
Q
I
A
Current
2
Q
ie
A
Electron Current
3
Q
Tau t
A
Mean time between collisions
4
Q
A
A
Ampere
5
Q
J
A
Current density
6
Q
R
A
Resistance
7
Q
J=
A
J=I/A
8
Q
I=
A
I= e * ie
9
Q
Q=
A
Q=I *
10
Q
♎️
A
Ohm
11
Q
ie definition
A
Rate of electron flow
12
Q
Ne=
A
ie *
13
Q
Conservation of current
A
The current is the same at any two points in a wire
14
Q
Kirchoffs junction law
A
SUM I in = SUM I out
15
Q
More collisions mean….
A
A higher resistivity p and and a lower conductivity
16
Q
Vd=
A
Vd= etE/m
17
Q
ie=
A
ie= ne * A * Vd
18
Q
Conductivity =
A
Conductivity = ne* e^2* t / m
19
Q
Resistivity =
A
Resistivity = 1/conductivity
20
Q
J=
A
J= ne * e * Vd = E * Conductivity
21
Q
Ewire=
A
Ewire = Vwire / L
22
Q
(Resistors) I=
A
I = Vwire/R
23
Q
R=
A
R=pL/A
