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Encyclopedic overview
4 sectionsContents
- Design evolution
- Precision ohmmeters
- References
- External links
thumb|An analog ohmmeter
An ohmmeter is an electrical instrument that measures electrical resistance (the opposition offered by a circuit or component to the flow of electric current). Multi-meters also function as ohmmeters when in resistance-measuring mode. An ohmmeter applies current to the circuit or component whose resistance is to be measured. It then measures the resulting voltage and calculates the resistance using Ohm’s law .
Excerpted from Wikipedia’s “ohmmeter” article, available under the CC BY-SA 4.0 licence.