Let There Be Light: Photoconductive Properties of Semiconductors
The Materials Science and Technology Teacher's Workshop (MAST) provides this activity as an introduction to the the photoconductive properties of semiconductors. The lab aims to "quantitatively determine how the electrical resistance of a cadmium sulfide photocell varies as a function of light intensity (distance)." The lesson includes step by step directions for the experiment. The activity should require about one hour of class time to complete.
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