Final answer:
To measure the voltage of batteries, one would sample by attributes.
Step-by-step explanation:
This statement is false. To measure the voltage of batteries, we use voltmeters or battery testers, which measure the terminal voltage under a load. When measuring the emf (electromotive force) of the battery, a standard voltmeter is connected directly to the battery, but it measures the terminal voltage instead of the emf due to the internal resistance of the battery.
For example, battery testers use small load resistors to intentionally draw current from the battery. By measuring the terminal voltage under this load, the battery tester can determine the condition of the battery and provide an indication of its internal resistance.