Electricity Flashcards
1
Q
What is voltage
A
Energy transferred per unit charge passed
2
Q
What is a volt
A
Is a joule per coulomb
3
Q
When says explain choice for fuse say
A
Others would blow up
4
Q
What is current
A
The rate of flow of electrons
5
Q
Give two reasons why lamp is not as bright
A
Series voltage shared between components
One cell connected wrong way
6
Q
Why does voltage / current graph of filament lamp not straight
A
Current / voltage increases
Increases temperature
Increases resistance
Slope becomes less steep
Non ohmic
Decreases rate of increase
7
Q
On cell
A
Short side is negative
8
Q
Energy transferred =
A
IVt
