Current Flashcards
1
Q
What is an electrical current
A
the flow of an electrical charge
2
Q
What does there have to be for a current to flow?
A
Potential difference
3
Q
What is potential difference?
A
The driving force that pushes the charge round
4
Q
What is the unit for current
A
A
5
Q
What is the unit for potential difference?
A
V
6
Q
What is resistance?
A
Anything that slows the force down
7
Q
What is the unit for resistance?
A
ohm
8
Q
What does total charge depend on
A
Time and current
9
Q
What is the relationship between resistance and current?
A
The greater the resistance, the smaller the current
