A 5V 1A DC power supply refers to a power adapter or source that provides a direct current (DC) output with a voltage of 5 volts and a current of 1 ampere (1A). Let me break down what this means:
Voltage (5V): This is the electrical potential difference between the positive and negative terminals of the power supply, measured in volts. In this case, the voltage output is 5 volts.
Current (1A or 1 Ampere): This represents the flow of electric charge, measured in amperes (amps). A current of 1 ampere means that the power supply can deliver 1 ampere of current to the connected device.
A power supply with a 5V 1A output is commonly used for various low-power electronic devices, including smartphones, small electronic gadgets, Arduino and Raspberry Pi boards, and USB-powered devices.