Which device is used to measure resistance in a circuit?

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Study for the Mechatronics End-of-Pathway (EOP) Test. Explore flashcards and multiple-choice questions, each with hints and explanations. Prepare confidently for your exam!

Multiple Choice

Which device is used to measure resistance in a circuit?

Explanation:
Measuring resistance requires an instrument that determines how much a component resists current flow. An ohmmeter does this by applying a small known current (or voltage) to the component and measuring the resulting response to compute resistance, then displaying it in ohms. This tool is specifically designed for resistance readings, unlike devices that measure other quantities: an ammeter checks current, a voltmeter checks voltage, and a wattmeter checks power. For accurate resistance measurements, ensure the circuit is powered off and the component is isolated to avoid readings influenced by other paths.

Measuring resistance requires an instrument that determines how much a component resists current flow. An ohmmeter does this by applying a small known current (or voltage) to the component and measuring the resulting response to compute resistance, then displaying it in ohms. This tool is specifically designed for resistance readings, unlike devices that measure other quantities: an ammeter checks current, a voltmeter checks voltage, and a wattmeter checks power. For accurate resistance measurements, ensure the circuit is powered off and the component is isolated to avoid readings influenced by other paths.

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