This educational film from the 1940s teaches the fundamental definitions of, and the physical concepts involved in, volt, ampere, ohm and watt.
7.3
Movie
2018
7.0
2022
6.2
2002
7.4
2016
2017
7.8
2021
6.5
2019
8.0
2025
2013
2015
6.8
7.1
2020
0
1956
1954
1946
2023
1958
1971
1989
6.1
2010
1990
4.1
1982
