A power cord is an electrical cable that connects an appliance or device to a power source, such as a wall outlet. It typically consists of two or more insulated wires that transmit electricity. The cord often has a plug on one end that fits into the outlet and a connector on the other end that attaches to the device. Power cords come in various lengths and types, depending on the device's requirements. Common examples include those used for computers, televisions, and kitchen appliances. Proper use and maintenance of power cords are essential for safety and to prevent electrical hazards.