Electrical energy is the energy derived from the movement of electrons through a conductor, typically within a closed circuit. It is a form of energy that results from the existence of charged particles (such as electrons or protons) and their movement.
The unit of electrical energy is the joule (J).
If a device consumes 1 joule of electrical energy, it means that one watt of power has been used for one second. For instance, a 1-watt light bulb turned on for 1 second consumes 1 joule of electrical energy.
Daily Life Examples of Electrical Energy
- Turning on a light bulb
- Charging a smartphone
- Operating a blender
- Watching TV
- Using a computer
- Running an electric fan
- Cooking with an electric stove
- Using a hairdryer
- Operating a microwave
- Running an air conditioner
Types of Electrical Energy
- Kinetic Energy: Energy associated with the movement of charged particles.
- Potential Energy: Energy stored in an electric field due to the position of charged particles.
More Examples
| Device | Power (Watts) | Time (Seconds) | Electrical Energy Consumed (Joules) |
|---|---|---|---|
| Laptop | 50 | 3600 | 180,000 |
| Refrigerator | 150 | 86400 | 12,960,000 |
| Washing Machine | 500 | 1800 | 900,000 |
| Electric Heater | 1000 | 60 | 60,000 |
| LED TV | 80 | 7200 | 576,000 |
