a)Which force is used to separate solid pollutant particles from smoke given out from factories? (b) Name the instrument which is used to measure liquid pressure.
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(ELECTROSTATIC FORCE )
The "force" is used to "separate solid pollutant particles" from "smoke" given out from factories is Electrostatic Force. Explanation: In general, an electrostatic smoke precipitator uses electrostatic force, by which the solid pollutant particles, like soot, fly ash, etc. from smoke are separated out.
(MANOMETER )
A manometer is a good example, as it uses the surface area and weight of a column of liquid to both measure and indicate pressure. Likewise the widely used Bourdon gauge is a mechanical device, which both measures and indicates and is probably the best known type of gauge.
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