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A rubber rod is rubbed with plastic, and a glass rod is rubbed with human hair. Will the rubber rod attract or repel the glass rod? Explain 3.
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Plastic has the ability to grab hold of electrons. so when a rubber rod is rubbed with plastic, electrons get transferred to plastic, making the rubber positively charged. On the other hand, rubbing a glass rod with hair makes the hair to lose electrons because materials like hair or fur can lose electrons easily. These electrons get transferred to the glass rod, making it negatively charged. When both these rods are brought close to each other, they attract.

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