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Question


In a Xerox machine, the black ink's toner particles are negatively charged. They strongly stick to the white A4 sheet paper and form letters and images. What charge could the A4 sheet possess for this process to happen?


Options:
A .   Positive
B .   Negative
C .   Neutral
D .   None of the above.
Answer: Option A
:
A and C
For the negative charge to stick on the paper, the paper should be either neutral or electrons deficient. The charge difference will create the force of attraction between them and hence, we see it as a black ink painted on the paper.

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