Final answer:
The most common type of connector used for devices that require 5V or 12V of power is USB (Universal Serial Bus). USB connectors are widely used for various devices such as smartphones, tablets, laptops, and other peripherals. They provide power as well as data transfer capabilities.
Step-by-step explanation:
The most common type of connector used for devices that require 5V or 12V of power is A) USB (Universal Serial Bus).
USB connectors are widely used for various devices such as smartphones, tablets, laptops, and other peripherals. They provide power as well as data transfer capabilities. USB connectors come in different versions, with USB Type-A and USB Type-C being the most common.
USB connectors have become the de facto standard for power and data connections due to their versatility and widespread adoption.