This experiment illustrates both color addition and ac current concepts. It is a new version of an old experiment, but here a tri-colored LED is used. Some ideas on how to conduct the demonstration are also given.
This content is only available via PDF.
© 2000 American Association of Physics Teachers.
2000
American Association of Physics Teachers
AAPT members receive access to The Physics Teacher and the American Journal of Physics as a member benefit. To learn more about this member benefit and becoming an AAPT member, visit the Joining AAPT page.
