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In an electrostatic precipitator,...

In an electrostatic precipitator,

A

The velocity of air between the plates must be very high to purify the air.

B

The electrode wires maintained at several thousand volts produces a corona which releases positively charged particles.

C

Particulate matter that are very small can be removed by precipitation

D

Collecting plates are grounded and collect negatively charged dust particles

Text Solution

Verified by Experts

The correct Answer is:
D
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