Electrical power is the rate at which electrical energy is transferred by an electric circuit. It is measured in watts (W) and can be calculated using the formula: power (P) = voltage (V) × current (I). Voltage is the electrical potential difference, while current is the flow of electric charge. Electrical power is essential for operating various devices, from household appliances to industrial machinery. It can be generated from different sources, including fossil fuels, nuclear energy, and renewable resources like solar and wind. Understanding electrical power is crucial for efficient energy use and management.