PH-2123
Uses and hazards of electrostatics
Physics · Secondary 4 · Medium · Uses and hazards of electrostatics
In a photocopier, a drum is left with positive charges in the shape of the image. Toner powder is then attracted to these regions before paper passes over the drum. What are the charges on the toner and on the paper?
- Toner: negative, Paper: negative
- Toner: negative, Paper: positive
- Toner: positive, Paper: negative
- Toner: positive, Paper: positive
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