Checking the voltage of a power supply is a crucial step in ensuring the proper functioning of electronic devices. It involves measuring the electrical potential difference between two points in a circuit, typically between the positive and negative terminals of the power supply.
The importance of checking power supply voltage cannot be overstated. An incorrect voltage can lead to a variety of problems, including component damage, system instability, and even safety hazards. For instance, an overvoltage can cause components to overheat and fail, while an undervoltage can prevent devices from operating correctly.