Story
In the early experiment with electricity carried out by William Gilbert (1540-1603) fifteen forty until sixteen zero three, a personal physician of Queen Elizabeth I, electric charges were produced mainly by “rubbing a galosh against a fur coat” or a glass rod against a silk handkerchief. When a lady with a fur coat gets in to a car with plastic seat covers, or a gentleman wearing rubber soled shoes walks across a carpet, spark may fly when they touch the handle of the car door, or radiator in the room. Electricity produced in this and similar ways is known as Static Electricity, and from early studies of it the first laws of electric interactions were published.
If we suspended, side by side, two light metallic or metal covered balls and touch each of them with a stick of hard rubber and that has been rubbed with a piece of fur or wool, we shall find that’s the balls repel each other (Figure 12-1A). Repulsion also takes place if we touch both balls with a piece of fur or wool that has been rubbed against hard rubber (Figure 12-1B). However, if one sphere is touched by the hard rubber stick and other by the fur, the two spheres will attract each other
If we suspended, side by side, two light metallic or metal covered balls and touch each of them with a stick of hard rubber and that has been rubbed with a piece of fur or wool, we shall find that’s the balls repel each other (Figure 12-1A). Repulsion also takes place if we touch both balls with a piece of fur or wool that has been rubbed against hard rubber (Figure 12-1B). However, if one sphere is touched by the hard rubber stick and other by the fur, the two spheres will attract each other
