- Electrical cell
An electrical cell is a device that is used to generate
electricity , or one that is used to makechemical reaction s possible by applying electricity.Cells producing electricity
The simple electrical cells where first developed in 1800s. cite web|url=http://www.magnet.fsu.edu/education/tutorials/java/electricalcell/index.html|title = Interactive tutorials: Simple electrical cell|publisher = Mag Lab Education|accessdate = 2007-07-10] They are also called "
galvanic cell s", because an Italian scientist namedLuigi Galvani invented these cells.Special
chemical reaction s which occur inside the electrical cell, result inoxidation and reduction of the substances inside the cell. This produces electrical energy. Normal batteries work like this.Some of the electrical cells produce electricity without using chemical energy. For example,
solar cell s produce electricity when they are exposed to sun light. [cite web|url = http://www.ktf-split.hr/glossary/en_o.php?def=electrical%20cell | title = Electrical cell|publisher = Chemistry Dictionary and Glossary|accessdate = 2007-07-10]Cells using electricity
Some chemical reactions need high energy to happen. An example is the breakdown of
water intohydrogen andoxygen . [cite web|accessdate=2007-07-10|url=http://www.answers.com/topic/electrolytic-cell-1|title = Electrolytic cell|publisher=Answers.com] An electrical cell (or anelectrolytic cell ) is used for these reactions. It is a container which has toelectrode s. The chemical substances is exposed to highvoltage electrical power, and the reaction happens inside the electrical cell.References
See also
* Battery
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