Energy and Power in Circuits
Anything which supplies electricity is also supplying energy. So cells, batteries, generators etc. all transfer energy to components in the circuit.
MOTION: Motors LIGHT: Lightbulbs HEAT: Hair dryers/kettles SOUND: Speakers
Resistors and heat
- Whenever a current flows through anything with electrical resistance then electrical energy is converted into heat energy.
- The more current that flows, the more heat is produced.
- A bigger voltage means more heating because it pushes more current through.
- Filament bulbs work by passing a…