Circuits - The Basics

2.6 know the difference between mains electricity being alternating current (a.c.) and direct current (d.c.) being supplied by a cell or battery

2.8 understand how the current in a series circuit depends on the applied voltage and the number and nature of other components

2.10 describe the qualitative effect of changing resistance on the current in a circuit

2.16 know that electric current in solid metallic conductors is a flow of negatively charged electrons

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