Which device is typically used for measuring resistance?

Which device is typically used for measuring resistance?

• A. Voltmeter
• B. Ammeter
• C. Ohmmeter
• D. Multimeter

Answer: (C)

The device typically used for measuring resistance is the ohmmeter. An ohmmeter is specifically designed for this purpose, providing a direct reading of resistance in ohms. It works by applying a known voltage across a resistor and then measuring the resulting current to calculate resistance based on Ohm's Law (R = V/I). While a multimeter can also measure resistance, its primary function is broader, allowing it to measure voltage, current, and resistance all in one tool. However, it is essential to note that not all multimeters function as ohmmeters, and they may require proper settings to measure resistance accurately. On the other hand, voltmeters and ammeters are used for measuring voltage and current, respectively, and are not suitable for direct resistance measurements. Thus, the ohmmeter is the most direct and accurate tool for measuring resistance.

The device typically used for measuring resistance is the ohmmeter. An ohmmeter is specifically designed for this purpose, providing a direct reading of resistance in ohms. It works by applying a known voltage across a resistor and then measuring the resulting current to calculate resistance based on Ohm's Law (R = V/I).

While a multimeter can also measure resistance, its primary function is broader, allowing it to measure voltage, current, and resistance all in one tool. However, it is essential to note that not all multimeters function as ohmmeters, and they may require proper settings to measure resistance accurately. On the other hand, voltmeters and ammeters are used for measuring voltage and current, respectively, and are not suitable for direct resistance measurements. Thus, the ohmmeter is the most direct and accurate tool for measuring resistance.