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Summary: An instructional film in diagrammatic form explaining how electricity flows. Points covered - Atomic matter, ionisation in gaseous matter, difference between conductors and insulators from free electron viewpoint, conduction current in a conductor, displacement current in an insulator, electric field at a region of potential energy, magnetic field at a region of kinetic energy due to current of electricity.
Production Country: GB
Production Details: ROYAL AIR FORCE (Production sponsor)
British Thompson Houston Research Laboratories (Production company)