elektriallikast

An elektriallikast is a device used to measure electrical resistance. It typically consists of a power source, a resistor to be measured, and a mechanism to indicate the resistance value. Early elektriallikasts were often simple ohmmeters, utilizing a galvanometer to detect current flow through the unknown resistor. The amount of current, for a given voltage, directly correlates to the resistance according to Ohm's Law. More advanced elektriallikasts incorporate digital displays and sophisticated circuitry for greater accuracy and a wider range of measurement. Some elektriallikasts are designed for specific applications, such as testing insulation resistance or continuity in electrical circuits. The term itself suggests a device that "casts" or determines the "source" of electrical "current," indirectly revealing the resistance.