When continuously changing current levels are present, which type of meter should be used?

When continuously changing current levels are present, using an analog meter is advantageous due to its design. Analog meters typically utilize a moving coil mechanism that can provide a smooth and continuous reading of current changes. This characteristic allows the operator to visually track fluctuating current levels in real-time, making it easier to interpret rapid changes and trends. The needle movement on the analog meter reacts immediately to current fluctuations, allowing for a more intuitive understanding of the current flowing through the circuit.

In contrast, digital meters may have a refresh rate that can lag behind quickly changing currents, which can lead to a delay in readings. This delay could result in missing critical fluctuations or not capturing the instantaneous value accurately, especially in environments where current changes are rapid and continuous. Therefore, an analog meter is better suited for this specific application, as it excels at giving immediate and continuous readings for varying current levels.