the.com/ohmmeter
A device that measures resistance by caring enough to ask nothing is plugged into live power.
means An instrument that measures electrical resistance, in ohms, by sending a small known current through a component and reading the voltage drop.
from A straightforward compound: 'ohm,' the unit of electrical resistance named after Georg Simon Ohm, the 19th-century German physicist who formalized the relationship between voltage, current, and resistance (Ohm's law), plus the familiar suffix '-meter' (from Greek 'metron,' meaning measure) used to name measuring instruments like thermometer or speedometer.
- warning
- never use on a powered circuit, ever
- how it works
- sends small current, measures voltage drop
- etymology
- named after Georg Ohm, resistance pioneer
- common form
- usually one function of a multimeter