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Electrostatic series: - PowerPoint PPT Presentation


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Matter is neutral. It is composed of an equal member of positive and negative charges. Some materials tend to attract a stronger negative charge than others. . Electrostatic series: . Electrostatic series: In reality this is what we will be seeing: . 1. Rubber. 5. Silk. 2. Ebonite.

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Presentation Transcript
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Matter is neutral. It is composed of an equal member of positive and negative charges. Some materials tend to attract a stronger negative charge than others.

Electrostatic series:

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Electrostatic series: In reality this is what we will be seeing:

1. Rubber

5. Silk

2. Ebonite

8. Acetate

6. Wool

3. Polyethylene

7. glass

4. Cotton

9. Cat’s fur

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Rubber

Ebonite

Polyethylene

Cotton

Silk

Wool

Glass

Acetate

Cat’s fur

So, elements at the top of the list tend to acquire negative charges when rubbed with materials lower down in the list.

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Let’s take the following example: what would happen when you rub ebonite with wool and then approach the ebonite to paper?

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A closer look: Let’s imagine that the attraction between the ebonite and the shredded paper is due to positive and negative charges.

At first, the ebonite is neutral

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So it’s neutral at present.

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