In undergoing the modern human life, we often see and even feel the phenomenon of static electricity (electrostatic) .Tahukah you, that electricity had been discovered since humans began to observe the effects arising from the two objects are rubbed each other. In fact, we may have felt like a sting on our feet after walking on the carpet made of nylon.
We also often see a natural phenomenon that is sometimes very powerful, the lightning or thunder.
The events mentioned above is the phenomenon of static electricity. Static electricity is a symptom of the interaction of electrical rnuatan not move or do not move in permanently.
Observing natural phenomena
Watch and observe natural phenomena following:
Figure 1.1 Femomena static electricity
With a deeper reasoning, the following question will appear in our minds. How and why such natural phenomena that happen? To further explore this, of course, you remember, when doing experiments using instruments electroscope as shown in Figure 1.2. Electroscope is a tool that can be used to determine the presence or absence of electrical charge on an object.
Figure 1.2 Experiment with Electroscope