Explains and shows the processes by which electricity is produced through the use of chemicals in electric cells, dry cells, and lead storage batteries, and includes the general principles for all three of these types. Mentions specific differences between the processes. Relates the possibility of recharging some kinds of batteries.
We digitized and uploaded this film from the A/V Geeks 16mm Archive. Email us at email@example.com if you have questions about the footage and are interested in using it in your project.