Electrical Work
Physics: Edexcel IGCSE, topic 2.3.7
Electrical Work
In an electrical circuit, the energy source (battery or power supply) makes a current flow.
Charge flow
- Charge flows from the energy source and through the rest of the circuit and its components, like lamps and heaters.
- The flow of current transfers energy from the energy source to the components.
Energy transfer
- The components then transfer energy to their surroundings.
- For example a lamp emits light into its surroundings.
Test yourself on Electrical Work
Select the relevant units for the equation: power = current x potential difference.
Flow of Energy in an Electric Circuit