Which instrument is used to measure resistance?

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Prepare for the NCCER Introduction to Electrical Circuits exam. Utilize flashcards and multiple choice questions with hints and explanations to excel on your test.

Multiple Choice

Which instrument is used to measure resistance?

Explanation:
Measuring resistance is done with an ohmmeter. It supplies a small test current (or voltage) through the component and uses Ohm’s law to determine the resistance from the measured response. This tool is specifically built to quantify how much a component resists current flow, unlike voltmeters which measure voltage, ammeters which measure current, or wattmeters which measure power. For an accurate reading, make sure the circuit is de-energized and the component is isolated so parallel paths don’t affect the result.

Measuring resistance is done with an ohmmeter. It supplies a small test current (or voltage) through the component and uses Ohm’s law to determine the resistance from the measured response. This tool is specifically built to quantify how much a component resists current flow, unlike voltmeters which measure voltage, ammeters which measure current, or wattmeters which measure power. For an accurate reading, make sure the circuit is de-energized and the component is isolated so parallel paths don’t affect the result.

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