1,017,855,146 visitors served.
1,017,855,146 visitors served. |
|
 Dictionary/ thesaurus |  Medical dictionary |  Legal dictionary |  Financial dictionary |  Acronyms |  Idioms |  Encyclopedia |  Wikipedia encyclopedia | ? |
cathode |
Also found in: Dictionary/thesaurus, Medical, Wikipedia | 0.06 sec. |
|
cathode, electrode electrode, terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit. In most familiar circuits current is carried by metallic conductors, but in some circuits the current passes for some distance through a ..... Click the link for more information. through which current leaves an electric device. In electrolysis electrolysis (ĭlĕktrŏl`əsĭs) ..... Click the link for more information. , it is the negative electrode in the electrolytic cell. cathodeTerminal or electrode at which electrons enter a system, such as an electrolytic cell or an electron tube. In a battery or other source of direct current, the cathode is the positive terminal. In a passive load it is the negative terminal. In an electron tube, such as a cathode-ray tube, electrons stream off the cathode and travel through the tube toward the anode. Meaning "down direction" in Greek, it is the emitting side of an emit-receive circuit. A cathode is considered a "negative electrode." Its counterpart, the "anode," means "up direction." For example, in a battery, the negative terminal is the cathode, and the positive side is the anode. In a vacuum tube, the cathode is the electron emitter ("cathode ray emitter"), and the anode is the collector plate. See electrode.
|
|
? Mentioned in | ? References in periodicals archive | |
|---|---|---|
The purchase adds 120,000 tons of copper cathodes to the company's annual production. Whether powering a gadget or a car, nickel ions in the cathodes of such batteries each capture one electron arriving from the anode. The durability of air cathodes in competing fuel cells can be compromised by airborne pollutants and/or internal cell complications such as methanol crossover. |
 |
| Free Tools: |
For surfers:
Browser extension |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|
|---|
Disclaimer |
Privacy policy |
Feedback | Copyright © 2008 Farlex, Inc.
Printer friendly
Cite / link
Email
Feedback
cathodes
