blog




  • Essay / Magnetism Essay - 1285

    To explain what exactly Tesla and Edison did, it is important to know that in a direct current system, electrons only flow in one direction. Whereas, like in an AC system, the electric current reverses its direction several times over the course of time. In conclusion, the use of electricity is not the work of a single person, but rather a combination of several intellectuals. However, the reality of how electricity behaves is just as important as its history. Although there is still much to know about the nature of electricity, there is a fundamental understanding of its essence. As mentioned earlier, electricity is a form of energy that comes from the existence of charged particles. To fully understand electricity, it is imperative to first analyze electrical force. Coulomb's law summarizes the electrical force between two objects. Coulomb's law is written F= k_e (|q_1 ||q_2 |)/r^2, where ke is 8.9875 x 109 N x m2 /C2. As the equation shows, the separation distance of the charged particles is at the bottom of the fraction. This means that a greater distance would produce a lesser force. Electricity can be classified in two different ways: static electricity or current electricity. In static electricity, there is a transfer of electrons between