Electrical Voltage: Definition, Formula, Levels, and Practical Applications

Electrical voltage is the electrical potential difference between two points, responsible for moving electrical charges in a circuit. In other words, it “pushes” the electric current, enabling devices and systems to operate. Measured in volts (V) by a voltmeter, voltage is a fundamental concept in the Brazilian electrical grid. Understanding electrical voltage is crucial for […]

Electric current: concept, types, and applications in generators

Every electronic device requires a power source to operate, whether from a battery or an outlet. Electric current is the orderly movement of charge-carrying particles (electrons) that occurs in a conductor when there is a potential difference between its ends, known as voltage. Its intensity is measured in Amperes (A) and can be calculated using the formula I = ΔQ/Δt. There are two main types: direct current (batteries) and alternating current (power grid).