The precipitator uses a high-voltage DC power supply to provide a set of wires with a positive charge and a set of plates with a _____ charge.
A) negative
B) positive
C) neutral

Question

The precipitator uses a high-voltage DC power supply to provide a set of wires with a positive charge and a set of plates with a _____ charge.
A) negative
B) positive
C) ​neutral

Quizplus · Accepted Answer

In a precipitator, the high-voltage DC power supply charges a set of wires positively, and the plates are charged negatively to attract and collect the particles from the air or gas passing through, using the principle of electrostatic attraction.

The Precipitator Uses a High-Voltage DC Power Supply to Provide