Which of the following force is utilized in reducing air pollution by removing dust, soot, and fly-ash particles from the smoke coming out of chimneys of factories?
$(a)$ magnetic force
$(b)$ gravitational force
$(c)$ electrostatic force
$(d)$ frictional force

All the charged particles of the dust, soot, and fly ash are removed by electrostatic force.

So, option (c) is correct.

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Updated on: 10-Oct-2022

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