8 - Charge And Current Flashcards
1
Q
Electric current
A
The rate of flow of negative charges of the conductor
2
Q
Difference between conventional current and electron flow
A
Conventional current - electric charge moves from positive to negative
Electron flow - electric charge moves from the negative to the positive (opposites attract)
3
Q
Mean drift velocity
A
The average velocity with which free electrons in a conductor get drifted under the influence of an external electric field applied across the conductor
4
Q
Equation for current in terms of n
A
I = Anev
5
Q
Kirchhoff’s first law
A
At any node (junction) in a circuit, the sum of currents passing in one equivalent to the sum of currents flowing out
6
Q
Elementary charge (e)
A
1.6x10^-19 C
