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If it's a *Crookes* tube you're asking about, it's a discharge tube because the applied electrical field causes ionization and a resulting discharge of energy in the form (mostly) of light, depending on the gas or gases in the tube.
It can be, if used as a verbal noun (gerund), e.g. Lightening your hair can damage it. Otherwise, it is a verb form. *Not to be confused with "lightning" which is a noun, an electrical discharge in the atmosphere.
I'm not really sure what you are asking about, but the US Defense Department Form DD214 is the report of the discharge of a member of the Armed Forces. It lists his dates of service, his rank, any medals, commendations or punishments, and the nature of his discharge.
DD214 is the discharge form. DD256 is the discharge certificate.
The electric current spalls metal into the machining liquid, and the metal cools to form metal "dust" that is carried away by the liquid.
The rate at which an electrical device converts energy from one form to another is called electrical power. The rate at which electrical energy is changed to another energy form electrical power.
Electricity is a very common (actually universal) natural phenomena. It commonly appears in nature as static electricity and static electric discharges, lightning bolts being a very powerful form of static electric discharge. It also appears as electric currents: one natural electric current flows through the outer liquid core of earth forming the earth's magnetic field. Humans have also figured out how to control and "domesticate" electricity for his own purposes, electric current from batteries, generators, and alternators being the most useful form.
Appears. Appears is a form of the verb appear
No, "appears" is not a preposition. It is a verb that indicates something being visible or coming into existence.
A torch (flashlight) is a convenient lighting device, where the energy source and the illumination are provided in a utilitarian form. (Headlamp, handheld, etc.)A complete electrical circuit is needed to operate the device, and an integral switch completes the circuit.The batteries naturally have their own built-in insulation to prevent premature discharge, and otherwise the circuit, as with all other electrical circuits, needs insulating from accidental discharge.
A palirrhea is any form of recurring discharge.
Electrical