equations for P4 Flashcards
1
Q
Charge flow (Q) =
A
Current x time taken
2
Q
What is charge flow measured in
A
Coulombs
3
Q
Potential difference across a component =
A
Energy transferred/ charge
4
Q
Resistance =
A
Potential difference / current
5
Q
What is time taken measured in
A
seconds
6
Q
what is current measured in
A
amps
7
Q
what is energy transferred measured in
A
joules
8
Q
What is resistance measured in
A
ohms
9
Q
what is potential difference measured in
A
volts
10
Q
How to find the potential difference in a series
A
add the individual potential differences together
11
Q
How to find the current in parallel circuits
A
Add the individual currents together
