Elektrik, or electricity, is a form of energy resulting from the movement of charged particles, typically electrons. It powers many devices and systems we use daily, such as lights, computers, and appliances. Electricity can be generated from various sources, including fossil fuels, nuclear energy, and renewable resources like solar and wind. The flow of electricity is measured in units called amperes, while voltage measures the force that pushes electric current through a circuit. Understanding electricity is essential for fields like engineering and physics, as it plays a crucial role in modern technology and infrastructure, impacting our daily lives significantly.