Current Electricity Flashcards
1
Q
Define current
A
It is the flow of charge carriers per unit time
2
Q
Define charge
A
It is the fundamental property of matter
I= Q/t
Q= Ne
3
Q
Define number density
A
It is the number of charge carriers present per unit time.
4
Q
Define electrical power
A
It is the rate of electrical energy transferred
5
Q
Define resistance
A
Ratio of voltage to current. It’s a property of component that hinders current
R= V/I
6
Q
State Ohm’s law
A
The current through a conductor is directly proportional to the potential difference across its ends, provided that temperature and other physical factors remain constant.
V=IR
