1
Q
Current symbol
A
I
2
Q
Voltage symbol
A
V
3
Q
Power symbol
A
P
4
Q
Charge symbol
A
Q
5
Q
Energy symbol
A
E
6
Q
Resistance symbol
A
R
7
Q
Current unit
A
Amps
8
Q
Voltage unit
A
Volts
9
Q
Power unit
A
Watts
10
Q
Charge unit
A
Coulombe
11
Q
Energy unit
A
Joules
12
Q
Resistant unit
A
Ohms
13
Q
What does an Ammeter do
A
Measure current and has to be in series
14
Q
Current definition
A
Rate of flow of charge
15
Q
Mains volts
A
230
16
Q
Resistance definition
A
A measure of how hard it is for current to flow, it is caused by collisions between the electrons & the ions in the lattice structure
17
Q
How resistance is caused
A
Collisions between the electrons and the ions in the lattice structure
18
Q
How to work owt resistance from a graph
A
1
__________
Gradient
19
Q
Mains frequency
A
50 Hz
physics electricity
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