Starting with a simple question: why do electrical wires get hot?Have you ever noticed that a cable gets slightly warm when ...
A clear, structured lesson exploring how resistance changes in different conditions. Students apply the resistance formula to calculate values from experimental data, investigate how changing a wire’s ...
This explanation is then extended to compare the resistance of long, short, thick and thin wires. The simulated practical explores conditions needed for current to flow in a circuit. This resource has ...
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