Circuits introduction Flashcards
1
Q
What is a current
A
Current is a measure of electron flow around a circuit
2
Q
What are the units for current
A
Amperes, amps or a
3
Q
What is potential difference
A
Potential difference is the force driving the flow of electrons around a circuit
4
Q
Whats another name for potential difference
A
Voltage
5
Q
What are the units for p.d
A
Volts, V
6
Q
What is resistance
A
Resistance is everything that opposes the flow of electrons in a circuit
7
Q
What are the units for resistance
A
ohms
8
Q
Which way does a current flow around a circuit
A
current travels from the positive terminal to negative terminal
