cathodes

Electrons exit here

Cathodes is the plural of cathode, the electrode through which electric current flows out of a device.

In a battery, the cathode is the positive terminal; in electrolysis, it's where reduction occurs.

Cathode ray tubes once powered televisions and monitors: The old TV's cathodes had finally burned out.

electrochemistry

electrolyte

Conductive dissolved substance

terminal · negative · cell · battery · electrolysis · oxidation · ion · conductor · polarity · voltage

batteries

lithium

Lightest solid element

nickel · cobalt · manganese · discharge · capacity · intercalation · graphite · separator · charging · degradation

vacuum-tubes

filament

Very thin thread

triode · pentode · amplifier · grid · plate · phosphor · CRT · magnetron · vacuum · heated

display-technology

phosphor

Light-emitting coating substance

deflection · luminescence · pixel · television · monitor · scanning · brightness · OLED · emitter · coating

Categories
Opposites
electrode polarity

cathodesanodes

Current exit terminals

Phrases
Family

cathode

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Concrete · Rated G