Measurement of Electricity

This educational film from the 1940s teaches the fundamental definitions of, and the physical concepts involved in, volt, ampere, ohm and watt. This educational film from the 1940s teaches the fundamental definitions of, and the physical concepts involved in, volt, ampere, ohm and watt. This educational film from the 1940s teaches the fundamental definitions of, and the physical concepts involved in, volt, ampere, ohm and watt. This educational film from the 1940s teaches the fundamental definitions of, and the physical concepts involved in, volt, ampere, ohm and watt.