SP1402 Exam1 Notes
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1 Electric Charges, Forces, and Fields Electricity and Magnetism Two fundamental forces united by Faraday One force produces the other [Electric (E) Magnetic (M) or M E] Advances due to revolutionary technology XEROX machine DNA (building blocks held together by electric/magnetic forces) The origin of electricity is the ATOM and the structure of the Atom Electron (-) Neutron (neutral/0) Proton (+) We all made of atoms and atoms are made of protons, neutron and electrons. Electrons are easy to kick out. They revolve around the nucleus in orbit s. Protons and Neutrons are packed inside nucleus. The Structure of an atom: It has a positively charges nucleus which contains protons and neutron tightly held together inside it. The electrons revolve around the nucleus in different orbits according to certain rules. 1. Strong Force keeps protons and neutrons together, so protons cannot free themselves. 2. Light coming to us is a result of weak force, no electroweak forces, there is no light. 3. Electroweak Force weak force + electromagnetic force (a result of electricity & magnetism) 4. There believed to be four forces that exist to govern this universe but we will study only electromagnetic force in this course: Strong force Weak force Electromagnetic force Gravity ________________________________________ There may be only ONE force showing its manifestations in different forms in this world i.e. earthquakes, lightning… Static electricity is a result of non-moving charged particles gathered at one place +/
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Transcript of SP1402 Exam1 Notes
8/13/2019 SP1402 Exam1 Notes
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