Arcing of Two Electrodes



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 Code Number :   5E40.61

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Reprinted by permission of Dick Berg, University of Maryland, for use on this website.

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Condition :   Fair   
Principle :   Ion Exchange at an Electrode  
Area of Study :  Electricity and Magnetism  
Equipment :   12 Volt Car Battery, Large Aluminum Block, Electrodes: Copper; Stainless Steel; Steel; Aluminum; Others if desired.

  
Procedure :   Connect as shown using the large block as one electrode and the metal rods as the other electrode. Scratch the rods across the surface of the block. Note the color of the sparks of each different rod. These colors are characteristic of the ions released by the different metals.  
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   References
                                                                         B-445:  "Weld Nails,"  DICK and RAE Physics Demo Notebook.  



Mail Questions and Comments to:  Dale Stille