What term describes the total voltage measurement across a power source?

The term that accurately describes the total voltage measurement across a power source is "Applied Voltage." This measurement indicates the voltage supplied by the power source to a circuit or device. It represents the potential difference that drives current through the circuit, making it a critical parameter in understanding how the power source interacts with the components it is powering.

"Source Voltage," while it may seem relevant, is not the most widely recognized term in this context and could be easily confused with other definitions. "Current Voltage" does not accurately describe a voltage measurement, as it mixes concepts of current and voltage, which are distinct electrical parameters. "Static Voltage" generally refers to voltage that does not change over time but does not specifically address the context of power sources or their total voltage. Hence, "Applied Voltage" is the most appropriate term in this scenario.