What is the name of the apparatus which measures electrical resistance by equalising the potential at two points of a circuit?
Bridge circuit Bridge circuit A bridge circuit is a topology of electrical circuitry in which two circuit branches (usually in parallel with each other) are "bridged" by a third branch connected between the first two branches at some intermediate point along them. The bridge was originally developed for laboratory measurement purposes and one of the intermediate bridging points is often adjustable when so used. Bridge circuits now find many applications, both linear and non-linear, including in instrumentation, filtering and power conversion. The best-known bridge circuit, the Wheatstone bridge, was invented by Samuel Hunter Christie and popularized by Charles Wheatstone, and is used
Professional Electrical Apparatus Recyclers League Professional Electrical Apparatus Recyclers League The Professional Electrical Apparatus Reconditioning League or PEARL is an international professional organization and standards group based in Denver, Colorado. PEARL is focused on developing ethical business practices and technical standards related to inspecting, testing, and reconditioning circuit breakers, transformer, motor controls, switchgear, disconnect switches, protective relays, bus duct, motor starters and other electrical equipment and apparatus used in the electrical distribution systems of commercial, industrial, and utility facilities. PEARL's standards for inspecting, testing and reconditioning electrical equipment, components and apparatus help ensure the reliable, safe operation of devices such as circuit breakers, transformers, switches,