Learning About Electric Current

Title. 10:19:33 Camera follows power lines from suburban home back to power plant, various lines, poles, towers. 10:20:06 INT electrical generators. Animation of interior of home showing flow of electrical current. CU plug inserted. 10:20:41 Young girl in bathroom turning on faucet; boy turns on reading lamp. Experiment conducted in studio w/ dry cells - connected to light bulb w/ copper wire - animations of electrical circuits. 10:22:12 CU 15 Amp fuse. CU fuse blowing. Copper wire replaced w/ glass rod - bulb won’t light. 10:23:05 Various types of insulators laid out on table. Light bulbs turning on due to resistance in wire. 10:23:35 Household appliances where resistant wire used as source of heat - chrome toaster, kettle, iron. 10:23:59 Nail wrapped in insulated wire & attached to cell - becomes magnetized & picks up tacks - electromagnets demonstrated. Boy sits & turns on light. Summary of closed circuits, resistant materials & electromagnets. 10:26:30 CUs electrical generator working. The End. Science - Physics - Electricity; 1955; Educational Film;