Which meter is used to measure resistance?

Which meter is used to measure resistance?

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

Answer: (A)

Measuring resistance is done with an ohmmeter. It works by applying a small internal current (or voltage) to the component and measuring the resulting voltage (or current), then using Ohm’s law to calculate resistance. You typically connect it with power off and place the probes across the element under test so the reading reflects the component itself, not the surrounding circuit. This is distinct from other meters: an ammeter measures current and is placed in series; a voltmeter measures voltage across two points and is placed in parallel; a wattmeter measures electrical power by combining voltage and current.

Measuring resistance is done with an ohmmeter. It works by applying a small internal current (or voltage) to the component and measuring the resulting voltage (or current), then using Ohm’s law to calculate resistance. You typically connect it with power off and place the probes across the element under test so the reading reflects the component itself, not the surrounding circuit. This is distinct from other meters: an ammeter measures current and is placed in series; a voltmeter measures voltage across two points and is placed in parallel; a wattmeter measures electrical power by combining voltage and current.