USOE-Castle

Shows how to test for and locate common circuit faults; explanation of electron flow through fused and grounded circuits; how to test for and locate grounds, resistance deterioration and interference in circuits. Elements of Electric Circuits. (111 min) 1943. 16sd-EBFilms. Shows the nature of electric currents and circuits. Animated drawings and straight photography explain motions of electrons, conductors, insulators and resistance factors.