My Undergraduate Electrical Materials Assignment Collection

Note

This is a collection of my Electrical Materials course assignment during my undergraduate study at the Electrical Engineering Department of Udayana University, 2010. Some of my assignments were lost because some of them were handwritten and submitted but here are the surviving assignments that were recorded electronically. The purpose of this post apart from being a reference for students is for others who want to know what kind of assignments were given during my era. This assignment has never been published anywhere and I, as the author and copyright holder, license this task with a CC-BY-SA compliant where anyone can share, copy, republish and sell on condition to state my name as the author and notify you that the original and open versions are available here.

Introduction to Electrical Insulation and an introduction for the general public who have not yet studied electricity

To study electrical insulation, it is better to know in advance how electricity flows and its properties. In an atom there are three kinds of charges. Positive, negative and neutral charges. positive charge is called “proton”, negative charge is called “electron” and neutral charge is called “neutron”. Similar charges (++,-) repel each other, different charges (+-) attract each other. Electricity is a flowing charge, in the salt bridge in chemistry, electricity can be generated because of the flowing electrons.

This will explain more about the salt bridge, but the reader doesn’t have to go into it. It is enough to read it because this section is an introduction. In chemistry it is known as the oxidation number, which is a number that states the amount of electric charge of an element in its compound. There are two chemical reactions known in this section, namely reduction and oxidation. A particle is said to experience a reduction when it captures an electron, it is said to undergo oxidation when it releases an electron. In a salt bridge, there are two poles connected by cables that can carry electric current, one pole is reduced (accepts electrons) and the other pole experiences oxidation (releases electrons). If in the middle of the cable is connected to a multi-tester, it will appear that there is an electric current flowing in the cable. Because this section is for introduction only, the author will not provide further information. If you want to know…