In an electrostatic precipitator,

Question

In an electrostatic precipitator,, The velocity of air between the plates must be very high to purify the air., The electrode wires maintained at several thousand volts produces a corona which releases positively charged particles., Particulate matter that are very small can be removed by precipitation., Collecting plates are grounded and collect negatively charged dust particles.

MARKS App · Accepted Answer

Electrostatic precipitator has electrodes maintained at many thousand volts. They produce a corona that releases negatively charged electrons which combine with dust particles to give them a negative charge. Grounded collecting plates collect these negatively charged dust particles if the air velocity is low allowing the dust to fall.

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