"electric discharges" is correct and usable in written English.
You can use it when referring to the release of electrical energy in the form of a spark or bolt of lightning. For example, "The storm caused electric discharges to strike the ground."
During electrical discharge processing (EDP), electric discharges are used to modify the surface properties of engineering components such as cutting tools, dies and molds.
For electromagnetic forming (EMF) processes employing ferromagnetic sheet metal blanks of low electrical conductivity with relatively slow electric discharges, the magnetic forces should be taken into account in order to achieve a correct representation of electromagnetic forces applied to the blank.
Such noise may occur in the examination of molecules undergoing chemiluminescence or existing in either flames or electric discharges.
There he joined the noted Irish chemist Thomas Andrews in research on the density of ozone and the effect of electric discharges on oxygen and other gases.
There are phenomena, such as lightning and electric discharges of other kinds, that allow free electrons to be observed, but these are exceptional occurrences.
Firstly, multi-pactoring electric discharges occurred.
Mercury lamp, electric discharge lamp in which light is emitted by electrically excited atoms of vapourized mercury.
Electric Discharge Machining (EDM) has been used for machining of electrically conductive difficult materials.
Smaller searchlights are incandescent and electric discharge lamps.
Another possible channel of communication occurs in a few fishes, namely electric discharge.
An arc lamp consists of a transparent tube of gases that are excited by an electric discharge.
