Resistance, current & PD Flashcards
1
Q
What does a voltmeter measure?
A
The potential difference
2
Q
What happens when we increase potential difference?
A
The current increases- therefore current is directly proportional to current
3
Q
what is the formula for potential difference?
A
V = I x R
Potential difference = Current x Resistance
4
Q
What is resistance measured in?
A
Ohms
