The Multimeter is best described as which instrument?

• A. Device that detects and analyzes RF spectrum
• B. Used to check signal strength
• C. Instrument that measures continuity, voltage, and resistance
• D. Tool that measures RSSI

Answer: (C)

A multimeter is a tool for basic electrical measurements on circuits: continuity, voltage, and resistance. It can check if a path conducts current (continuity), measure the potential difference across two points (voltage), and determine how much a component resists current (resistance). In continuity mode, a good path usually triggers a beep or shows near-zero resistance, confirming the circuit is connected. In voltage mode, you compare the electrical potential between two points to see how much voltage a component or supply provides. In resistance mode, you read in ohms to assess how much a component resists current flow, which helps diagnose bad parts or open circuits.

The other options describe equipment used for RF work. A device that detects and analyzes RF spectrum is a spectrum analyzer, not a multimeter. Tools that check signal strength or measure RSSI relate to RF receivers or field-strength meters, not the basic electrical measurements a multimeter provides.