Final answer:
The power supply typically connects to the power cord using an IEC-320 connector, with conducting wires and insulator materials ensuring safe transmission of electricity.
Step-by-step explanation:
The power supply connects to the power cord via a standard IEC-320 connector. This connector is commonly used to transmit electricity from the power source to devices, such as laptop computers. Quality power adapters use conducting wires made of metals like copper and connectors that allow electrons to move freely while being shielded by rubber and plastic, serving as insulators to prevent electric charge from escaping. This connector is typically used for connecting electronic devices, such as computers, to a power source. It consists of three prongs that fit securely into corresponding slots in the power cord.