Current Flashcards
1
Q
What is current/what is the equation?
A
Current is the rate of flow of charge defined by the equation - I = Q/t
2
Q
What is the unit of charge current and time?
A
Coulomb, ampere, seconds
3
Q
What component is needed to measure current?
A
Ammeter
4
Q
What is the elementary charge?
A
The charge of an electron which is 1.6x10^-19
5
Q
What is mean drift velocity?
A
I(current) = A(cross sectional area) x n(number density) x v(mean drift velocity)
