Electricity

Electricity is the phenomenon of electric charge at rest or in motion, and one of nature's fundamental forces. It arises from the behavior of Electrons and other charged particles, and powers nearly all modern technology.

At its core, electricity involves two types of charge—positive and negative—that attract or repel each other. When charges flow through a conductor (like copper wire), they create Electric current, which can be harnessed to do work: light a bulb, run a motor, heat a room. The energy comes from various sources: Solar power, wind turbines, chemical reactions in batteries, or Nuclear fission.

Electricity behaves according to principles discovered by pioneers like Michael Faraday and James Clerk Maxwell, formalized into Maxwell's equations. Key concepts include Voltage (the push driving charges), Resistance (opposition to flow), and Power (rate of energy transfer). Understanding electricity requires tools from Physics, Mathematics, and Engineering.

The distinction between static electricity—charge buildup on surfaces—and dynamic electricity, the organized flow through Circuits, shapes how we think about and use this force. Today, electricity underpins Sustainable development, from grid infrastructure to electric vehicles.

Related

Energy, Magnetism, Electromagnetism, Circuits, Conductivity, Generators