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The given figure represents electrostati...

The given figure represents electrostatic precipitator. Select the right option in which A, B and C are correctly identified

A

A - Uncharged corona, B - Positively charged wire, C - Collection plate never ground

B

A - Discharge corona, B - Negatively charged wire, C - Collection plate burnt

C

A - Discharge corona, B - Positively charged wire, C - Collection plate grounded

D

A - Discharge corona, B - Negatively charged wire, C - Collection plate grounded

Text Solution

Verified by Experts

The correct Answer is:
D
Electrostatic precipitator has electrode wires that are maintained at several thousand volts which produce a corona that release electrons.
These electrons attach to dust particles giving them net negative charge.
The collected particles are grounded and attract the charged dust particles.
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