What is a primary feature of an analog multi-meter?

A primary feature of an analog multi-meter is low impedance. This characteristic is important as it allows the meter to provide a more direct reading of the circuit it is measuring, particularly in certain types of measurements such as voltage. When an analog meter is connected in parallel with a load in a circuit, its low internal impedance minimizes the influence it has on the circuit being tested, which helps to ensure that the measurements are accurate reflections of the actual values present in the circuit.

While other features, such as automatic ranging, sample and hold circuitry, and automatic polarity identification, can be found in digital multimeters, they are not typical characteristics of analog multi-meters. Analog meters typically require manual adjustments for different ranges and do not have the advanced functions that could influence their measurements. Understanding the fundamental properties of an analog multi-meter, specifically its low impedance, is essential for effective usage in various electrical testing scenarios.