Encyclopedia > Photocell

Article Content

Photocell

A photocell is a kind of electronic component which can detect light. Once a photocell is lighted, electrons are emitted from one side to another side in the photocell so that a current can be transferred.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Ocean Beach, New York

... 65 years of age or older. The average household size is 2.26 and the average family size is 2.91. In the village the population is spread out with 21.7% under the age of ...