In electrical terms, what does the term 'analog' refer to concerning meters?

The term 'analog' in relation to meters refers to a continuous representation of data values. This means that an analog meter displays measurements through a moving needle on a dial or scale, providing a real-time indication of the variable being measured, such as voltage, current, or resistance. The continuous nature of this representation allows for an infinite number of values within a range, reflecting the actual changes in the electrical quantity without restriction to specific, fixed values.

In contrast, the other options describe different concepts in measurement. The first choice discusses discrete values, which relate to digital or quantized representations, where data is divided into distinct numbers without intermediates. The third option pertains specifically to digital displays, which present measurements using numerals instead of a physical pointer. Lastly, describing a measurement technique as obsolete does not accurately represent the continued use and relevance of analog meters in various applications, especially where immediate and continuous feedback is crucial.