Skip to content
ca-tốt

File:Copper_cathode_2.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ175233· pop 70· linked from 671 articles

thumb|Diagram of a copper cathode in a [[galvanic cell (e.g. a battery). Positively charged cations move towards the cathode allowing a positive current i to flow out of the cathode.]]

AI overview

A cathode is the positive terminal in a battery or similar device where positively charged particles are attracted and where electric current flows out. It matters because it's one of the two essential parts of a battery that makes electrical current flow, which powers everything from flashlights to electronics.

AI-generated from the Wikipedia summary — may contain errors.

Gallery (17)