Electricity

Aims

Pupils should gain an understanding of:

• How to measure current in series and parallel circuits;

• Current in a series circuit depending on the number of cells and the number and nature of other components;
• Current ‘not being used up’ by components in circuits;
• Current is a flow of charge;
• Current is a body of moving charged particles;
• The fact that an electric current can carry energy;
• Your body can complete an electric circuit;
• The idea that if you put two lamps in a series circuit the current is shared between them;
• Parallel circuits allow you to get enough electric current to supply several lamps from one battery.