Current Electricity (15) Flashcards
1
Q
Current
A
Rate flow of charges
2
Q
Electromotive force
A
The work done by a source in driving a unit charge around a complete circuit
3
Q
Potential difference
A
The work done to drive a unit charge through the component
4
Q
Resistance
A
Resistance of a component is the ratio of the potential difference across it to the current flowing through it
5
Q
Ohm’s law
A
States that the current passing through a metallic conductor is directly proportional to the potential difference across it, provided that physical condition remain constant
6
Q
Resistivity
A
Ability of a material to resist a current
