a) In this question you will be assessed on using good English, organising information clearly and using specialist terms where appropriate.
There are two types of traditional transformer; step-up and step-down.
The diagram shows the basic structure of a transformer.
In this question you will be assessed on using good English, organising information clearly and using specialist terms where appropriate.
The diagrams show a relay switch and how it is used in a car ignition circuit.
The diagram shows the equipment used by a student to investigate the strength of five different electromagnets.
