Combined ScienceCode 5129
Electrical current
What this topic asks you to be able to do
- Define electric current as the charge that passes a point in each unit of time; also recall the equation “electric current = charge / time”, I = Q / t, and use it
- Describe electrical conduction in metals by reference to how free (delocalised) electrons move through the material
- Describe the way ammeters (analogue and digital) of differing ranges are employed, and be able to use them