What device displays an electrical quantity as a numeric value?

• A. Multimeter
• B. Oscilloscope
• C. Meter
• D. Frequency counter

Answer: (C)

The correct choice is a meter, which is a general term used to describe devices that measure and display electrical quantities, such as voltage, current, or resistance, as numeric values. Meters can vary in complexity and purpose, but at their core, they are designed to convert an electrical signal into a readable numeric output, allowing users to easily interpret and understand the measurement being taken.

A multimeter is a specific type of meter that combines multiple measurement functions, often allowing users to measure voltage, current, and resistance all in one device. While a multimeter clearly displays numeric values, the more general term "meter" encompasses it and other types that also measure electrical quantities.

An oscilloscope provides a visual representation of electrical signals over time, displaying waveforms on a screen rather than clear numeric values of the measured quantities.

A frequency counter specifically measures the frequency of a signal and provides a numeric output, but it focuses on just one type of measurement.

Thus, the most inclusive and correct answer for something that reflects the measurement of electrical quantities and displays them as numeric values is simply a meter.