ELEC 251- Final Exam Guide - Comprehensive Notes for the exam ( 26 pages long!)

• School: Concordia University
• Department: Elect. Engin.
• Course: ELEC 251
• Professor: Abdel Sebak

Document Summary

Topics: em history and how it relates to other fields. Highlights: em in classical era: 1000 bc to 1900, examples of modern era technology timelines, concept of fields (gravitational, electric, magnetic, static vs. dynamic fields, the em spectrum. Timeline for electromagnetics in the classical era ca. Bc across a field in northern greece, a shepherd named magnus experiences a pull on the iron nails in his sandals by the black rock he was standing on. The region was later named magnesia and the rock became known as magnetite [a form of iron with permanent magnetism]. ca. Bc describes how amber, after being rubbed with cat fur, can pick up feathers [static electricity]. ca. 1000 magnetic compass used as a navigational device. 1752 benjamin franklin (american) invents the lightning rod and demonstrates that lightning is electricity. Coulomb (french) demonstrates that the electrical force between charges is proportional to the inverse of the square of the distance between them.