Anode - Vacuum Tubes, Electrochemical Cells, Anodes In Practical Use
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The word anode is used in two different sets of circumstances: with respect to vacuum tubes and with respect to electrochemical cells.
The word anode is used in two different sets of circumstances: with respect to vacuum tubes and with respect to electrochemical cells.
There are two kinds of electrochemical cells: those in which chemical reactions produce electricity—called galvanic cells or voltaic cells—and those in which electricity produces chemical reactions—called electrolytic cells. An example of a galvanic cell is a flashlight battery, and an example of an electrolytic cell is a cell used for electroplating silver or gold. In either …
A sacrificial anode is a piece of metal that is made to act as an anode and therefore be oxidized, in order to protect another piece of metal from being oxidized. For example, to keep iron or steel from oxidizing (rusting) when in contact with air and moisture, such as when it is being used as a fence post, the post can be connected to a piece of zinc that is buried in the ground next to it. The i…
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