Voltage measurement is the process of determining the electric potential difference between two points in an electrical circuit. This is typically done using a device called a voltmeter, which can be analog or digital. The measurement is expressed in units called volts, which indicate the strength of the electric force driving the current. To measure voltage accurately, the voltmeter is connected in parallel with the component or section of the circuit being tested. This allows the voltmeter to capture the potential difference without disrupting the flow of current. Proper voltage measurement is essential for diagnosing electrical issues and ensuring safe operation of electrical systems.