Effects of force between charged objects.
When you inflate two balloons and rub them against hair or wool, they become electrically charged. They gain the same charges.
Like charges repel each other and therefore when the balloons are hanged and moved close to each other, they move apart. This is called repulsion.
After a while, the charged particles vanish gradually. The balloons are no longer charged and they move closer.
Demonstrating Repulsion between charged objects.
To demonstrate repulsion between charged objects, Styrofoam plates are rubbed at the base with piece of cloth.
The plates are placed on a flat surface and their bases moved closer to each other.
The Styrofoam plate gains negative charges from the cloth and becomes
negatively charged. The Styrofoam plates move apart. They repel each other. This is called repulsion.
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