What electric charge attracts dust?

Urban Beer asked a question: What electric charge attracts dust?
Asked By: Urban Beer
Date created: Sun, Jan 31, 2021 12:47 AM



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👉 A negative electric field attracts negative charges?

This means that the closer you get to the negative charge, the less potential energy it has. $$U=\frac{1}{4\pi\epsilon}\frac{q_1q_2}{r}$$. Since $q_1$ is negative, the potential energy decreases (becomes more negative) as r decreases. So in conclusion, just think of an electric field, or any field, as pointing in the direction of decreasing ...

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I understand that two points that have opposite electrical charges will attract each other and that two points that have like electrical charges will repel each other. Using one or both of my power supplies and the plastic object described above, I am looking to somehow charge any potential dust particles that are in a small room and apply the opposite charge to the plastic object.

When dust is carried on air currents generated by air conditioning and similar devices, the dust takes on a positive or negative static electric charge due to contact with various objects. Dust that has a positive electric charge will be attracted to objects that have a negative electric charge , and vice versa.

Dust that has a positive electric charge will be attracted to objects that have a negative electric charge, and vice versa. The greater the amount of dust in the air, the larger the amount of dust that clings to objects within the room.

The air/dust passing through the first grid charges the dust. The second grid, charged to the opposite polarity, attracts the dust like a rubbed balloon picks up bits of paper. The larger the grids, the greater the DC voltage and the greater the air flow the more dust is removed.

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