Conduction of Electricity (Unit 2) Flashcards
1
Q
What is a Coulomb?
A
The Unit of Electrical Charge
2
Q
What materials can charge flow through and why?
A
-Conductors
-Have a very high electron density
3
Q
What is Electrical Current?
A
the rate of flow of charge
4
Q
What is Current Measured in?
A
Ampères (A)
A = Cs-1
5
Q
How do we derive I= nAve?
A
Volume = A x vt
Number of free electrons = Avt x n
Calculate Charge= Q = nAvt x e
Calculate Current= I = Change in Q / Change in T = nAvte / t = nAve
6
Q
Number of free electrons per cubic cm?
A
Number of free electrons/ volume
