Encyclopedia > Photocell

  Article Content


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
List of closed London Underground stations

... on what is now the Hammersmith & City Line) Uxbridge Road tube station[?] York Road tube station[?] As are these stations, all of which were at the far end of th ...

This page was created in 38.5 ms