Anode
An anode is an electrode of a polarized electrical device through which conventional current enters the device. This contrasts with a cathode, an electrode of the device through which conventional current leaves the device. A common mnemonic is ACID, for "anode current into device". The direction of conventional current (the flow of positive charges) in a circuit is opposite to the direction of electron flow, so (negatively charged) electrons flow out the anode of a galvanic cell, into an outside or external circuit connected to the cell. For example, the end of a household battery marked with a "-" (minus) is the anode.
- Comment
- enAn anode is an electrode of a polarized electrical device through which conventional current enters the device. This contrasts with a cathode, an electrode of the device through which conventional current leaves the device. A common mnemonic is ACID, for "anode current into device". The direction of conventional current (the flow of positive charges) in a circuit is opposite to the direction of electron flow, so (negatively charged) electrons flow out the anode of a galvanic cell, into an outside or external circuit connected to the cell. For example, the end of a household battery marked with a "-" (minus) is the anode.
- Depiction
- Has abstract
- enAn anode is an electrode of a polarized electrical device through which conventional current enters the device. This contrasts with a cathode, an electrode of the device through which conventional current leaves the device. A common mnemonic is ACID, for "anode current into device". The direction of conventional current (the flow of positive charges) in a circuit is opposite to the direction of electron flow, so (negatively charged) electrons flow out the anode of a galvanic cell, into an outside or external circuit connected to the cell. For example, the end of a household battery marked with a "-" (minus) is the anode. In both a galvanic cell and an electrolytic cell, the anode is the electrode at which the oxidation reaction occurs. In a galvanic cell the anode is the wire or plate having excess negative charge as a result of the oxidation reaction. In an electrolytic cell, the anode is the wire or plate upon which excess positive charge is imposed. As a result of this, anions will tend to move towards the anode where they will undergo oxidation. Historically, the anode of a galvanic cell was also known as the zincode because it was usually composed of zinc.
- Hypernym
- Electrode
- Is primary topic of
- Anode
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- enAnode
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- Anion
- Anodizing
- Battery (electricity)
- Category:Electrodes
- Cathode
- Cathode-ray tube
- Cathodic protection
- Charge carrier
- Conventional current
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- Electric charge
- Electric current
- Electrochemistry
- Electrode
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- Electrolytic cell
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- Electron
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- Electrostatics
- File:Anodes-on-jacket.jpg
- File:Charge discharge secondary batterie.png
- File:Diode symbol.svg
- File:Fig bat Discharge Charge3.png
- File:Galvanic cell with no cation flow.svg
- File:Triode-english-text.svg
- File:Zinc anode 2.svg
- Forward bias
- Galvanic anode
- Galvanic cell
- Galvanise
- Gas-filled tube
- Geomagnetic reversal
- Greek language
- Hull (watercraft)
- Humphry Davy
- Iron
- List of chemistry mnemonics
- Michael Faraday
- Mixed metal oxide
- Mnemonic
- Oxidation
- Oxidation reaction
- Plate electrode
- Primary cell
- Rechargeable battery
- Redox
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- Semiconductor
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- Zinc
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