LCD
Electrostatic attraction between oppositely charged ions.
opposites attract, likes repel.
An insulator
An insulator Becomes statically charged when rubbed against another insulator
The rubbing force that strips electrons or a material and makes it charged is friction!i
The number of oppositely charged ions surrounding it
The material will
When an insulator rubs against another material, it can cause electrons to be transferred from one material to the other due to the contact and separation forces. This results in one material becoming positively charged and the other becoming negatively charged. Friction between the insulator and another material can create an imbalance of electrons on the insulator's surface, leading to the insulator becoming charged.
Material can become electrically charged when two different material are brought into close contact, some of the electrons move from one material to another.
If you move the material near the negative acetate strip and they repel each other, the material negatively charged. If they move towards each other, it is positively charged. If you move the material near the positive rod and they attract, the material is negatively charged. If they repel, it is positively charged. This is because opposite charges attract and same charges repel.
Positively Charged
With the appropriate charging unit, any recharegeable battereis can be charged by solar energy.