Electrochemical processes in a lead-acid battery produce electric current.
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In alkaline batteries electric current is generated by electrochemical reactions
Aluminium smelting is the process of extracting aluminium from alumina by electrolysis.
Capacitors store electrical energy in the form of electric charge.
DC motors consist of a permanent magnet and a coil within the magnet, with electric current flowing in it.
Common salt is dissolved by water: polar water molecules form a coat around the ions.
A dynamo converts mechanical energy into direct current.
The Tesla Model S is one of the first commercially available electric cars.
A fuel cell provides environment-friendly electric energy produced by the chemical reaction between oxygen and hydrogen.
Electric current can be generated by rotating an armature loop in a magnetic field.
A compound ion produced when sulphuric acid releases protons.
A colourless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.
Water turbines convert the kinetic energy of water into electric current.
A transformer is a device used for converting the voltage of electric current.