Examlex
The nucleus of an atom does not contain .
Precipitator
An environmental control device, such as an electrostatic precipitator, that removes particles from a flowing gas using the force of an induced electrostatic charge.
Air Filter
A device that removes particles, such as dust and pollen, from air to improve quality or protect machinery by preventing the accumulation of contaminants.
Static Electricity
The buildup of electric charge on the surface of objects, usually caused by friction between materials.
Electrons Moving
The movement of electrons through a conductor, which constitutes the basis of electric current.
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