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Unit 4F Circuits and conductors
This unit built on our previous practical experience of making circuits and
extended our understanding of circuits, conductors and insulators and the
need for a complete circuit in order for a device to work.
We constructed simple circuits and used them to test whether
materials are electrical conductors or insulators and how switches work; we
related knowledge about metals and non-metals to our use in electrical
appliances and systematically investigated the effect of changing components
in a circuit on the brightness of bulbs. |