Which device is used for measuring electrical values such as voltage, current, and resistance?

Which device is used for measuring electrical values such as voltage, current, and resistance?

• A. Oscilloscope
• B. Clamp Meter
• C. DVOM Meter
• D. Power Analyzer

Answer: (C)

The instrument designed to measure voltage, current, and resistance in a simple, all-in-one tool is the digital volt-ohm-milliammeter. A DVOM is built with separate measurement modes for volts (voltage), ohms (resistance), and amperes (current), making it the most versatile choice for basic electrical measurements. To measure voltage, you set the meter to the appropriate volt range and place the probes across the component to read the potential difference. To measure resistance, you first ensure the circuit is de-energized, then connect the probes across the component and read the resistance value. For current, you typically place the meter in series with the load and select the proper current range so the device can sense the flow of electrons through the circuit. Some DVOMs provide current reading via a dedicated port with a built-in fuse, so using the correct port and range is important for safety and accuracy. Oscilloscopes are great for viewing voltage waveforms over time, not for straightforward V, I, and R checks. Clamp meters specialize in measuring current (usually with a clamp around a conductor) and aren’t the go-to for resistance, and they aren’t as convenient for quick voltage and resistance readings. Power analyzers focus on power-related quantities and are more specialized than needed for basic V, I, and R measurements.

The instrument designed to measure voltage, current, and resistance in a simple, all-in-one tool is the digital volt-ohm-milliammeter. A DVOM is built with separate measurement modes for volts (voltage), ohms (resistance), and amperes (current), making it the most versatile choice for basic electrical measurements. To measure voltage, you set the meter to the appropriate volt range and place the probes across the component to read the potential difference. To measure resistance, you first ensure the circuit is de-energized, then connect the probes across the component and read the resistance value. For current, you typically place the meter in series with the load and select the proper current range so the device can sense the flow of electrons through the circuit. Some DVOMs provide current reading via a dedicated port with a built-in fuse, so using the correct port and range is important for safety and accuracy.

Oscilloscopes are great for viewing voltage waveforms over time, not for straightforward V, I, and R checks. Clamp meters specialize in measuring current (usually with a clamp around a conductor) and aren’t the go-to for resistance, and they aren’t as convenient for quick voltage and resistance readings. Power analyzers focus on power-related quantities and are more specialized than needed for basic V, I, and R measurements.