electrostatic series:
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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:
2. Ebonite
1. Rubber
3. Polyethylene
4. Cotton
5. Silk
6. Wool
7. glass
8. Acetate
9. Cat’s fur
RubberEbonitePolyethyleneCottonSilkWoolGlassAcetateCat’s fur
So, elements at the top of the list tend to acquire negative charges when rubbed with materials lower down in the list.
Let’s take the following example: what would happen when you rub ebonite with wool and then approach the ebonite to paper?
Shredded paper
The shredded paper is attracted to the ebonite
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
+ - + -+-
So it’s neutral at present.
+ - + -+ -
--
-