Electricity is a form of energy that is created by the flow of electric charges. The word electricity was coined by a physician William Gilbert. Electricity is neither a renewable nor nonrenewable energy source of energy. The concept of electricity is also observed in several creations of nature. Lightning is the most common natural example. Another example, a fish called the electric eel, has a high voltage current in its cells to catch its prey. In addition to all these examples, all the activities in animal and plant cells take place due to electric stimulation occurring inside the nerve cell. Electricity has several applications in today's world. It is used to run appliances, such as televisions, computers, microwave ovens, washing machines, etc.

Electric charge -- Static electricity -- Electric current -- Sources of electricity -- Conductors and insulators -- Magnetism -- Electromagnetism -- Transformers -- Electric circuits -- Electric motors -- Switches -- Tools and equipment -- Common electrical appliances -- Safety -- Measuring instruments -- Consumption of electricity -- Alternative electricity -- Conservation of electricity.