EMF sources
For these activities:
- use Challenge to see how much you already know
- use Reinforcement for extra practice.
For more information choose Resources, and look in Electrical principles under Creating electricity.
Creating an electromotive force
Where does the electricity we use at work, at home, in motor cars or to power hand held devices come from? It comes from various devices that create an electromotive force (EMF).
These activities cover the different ways of generating an EMF.