Current electricity

• When electricity flows from one point to another through a conductor this is known as electric current
• Electric current when electricity flows from one point to another through a conductor
• If an electric cell is used
• Charge flows from the positive terminal of the cell
• through the circuit
• to  the negative terminal of the cell
• An electric current is a flow of electrons
• Through the conducting circuit
• Or the flow of ions in an electrolyte
• This is also known simply as the current
• It is measured in amperes
• This is shown as amps or A
• The amount of current flowing through a circuit is measured using an ammeter
• The ammeter is connected in series

Electrical symbols

Common electric symbols

• Symbols are often used when electric diagrams are diagrams
• The diagram above shows some of these symbols and the devices they represent
• A straight line is used to show a conducting wire
• A lot of other symbols are used that are not shown on this diagram
• Each will be labelled for your convenience under each of the topic it appears

To access more topics go to the Combined Science Notes page.