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Q.4

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 623

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Short Answer

Charged plastic and glass rods hang by threads.

a. An object repels the plastic rod. Can you predict what it will do to the glass rod? If so, what? If not, why not?

b. A different object attracts the plastic rod. Can you predict what it will do to the glass rod? If so, what? If not, why not?

a. an object that repels, when plastic will be attracted to glass.

b. an object that attracted to plastic should repel glass of same charges will repel each other.

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Step by Step Solution

Step 1: Given information

Charged plastic and glass rods hang by threads. they are kept at small distance.

Step 2: Explanation (part a)

If plastic is charged negatively and glass is charged positively, then an object that repels plastic will be attracted to glass.

Step 3: Explanation (part b)

The object attracted to plastic should repel glass. Because the objects of same charges are repel each other eventhough it is different objects.

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