Why are electrical wires made from metals such as copper and aluminum, while the outside of those same wires is covered with plastic or rubber? Why can you safely hold the plastic covering of an electrical cable, but touching the…
Have you ever rubbed a balloon against your hair and watched it stick to a wall? Or noticed your hair standing up after removing a woollen sweater? These are simple examples of objects becoming electrically charged. But how does an…
Have you ever rubbed a balloon against your hair and watched it stick to a wall? Or have you felt a tiny electric shock after walking on a carpet and touching a metal object? These are simple examples of something…
Electric charge is a fundamental property of matter responsible for electrical interactions. The SI unit of charge is coulomb (C). There are two types of charges. 1. Positive charge 2. Negative charge Like charges repel each other while unlike charges…