What functions does a multimeter typically combine?

• A. Measuring temperature, humidity, and pressure
• B. Generating voltage and current
• C. Measuring voltage, current, and resistance.
• D. Analyzing signal frequency

Answer: (C)

A multimeter’s main job is to measure the three basic electrical quantities: voltage, current, and resistance. It lets you see the potential difference across a component (voltage), how much current is flowing through a circuit (current), and how much the component resists current (resistance). These measurements cover the essential diagnostic needs when evaluating circuits.

Other options don’t fit because:

• Measuring temperature, humidity, and pressure is the domain of separate instruments like thermometers, hygrometers, and barometers.

• Generating voltage and current is what a power supply or generator does, not a measurement tool.

• Analyzing signal frequency can be a feature on some meters, but it’s not the core function of a basic multimeter; voltage, current, and resistance are the standard trio you’ll rely on most often.