What is a digital multimeter used to measure?

• A. Two or more electrical values—principally voltage, current, and resistance
• B. Only temperature
• C. Only pressure
• D. Only frequency

Answer: (A)

A digital multimeter is a versatile instrument for measuring electrical quantities, typically covering voltage, current, and resistance. The device uses probes that you place across a component or circuit to read voltage, or you insert in series to measure current, and you apply a small test signal to determine resistance with the circuit de-energized. While many meters also offer extra features like continuity testing or measurements of capacitance, frequency, or temperature, the defining use is to quantify multiple electrical values—primarily voltage, current, and resistance. Options that focus on a single non-electrical parameter (like temperature or pressure) or on a single electrical parameter (like frequency) don’t reflect the broad, multi-parameter capability of a digital multimeter.