Electricity And Magnetism For Dummies

Electricity and magnetism make up one of the most successful fields of study in physics.

Electricity and magnetism for dummies. We are familiar with in our everyday lives with the phenomenon of static cling when two objects such as a piece of saran wrap and a wool sweater are rubbed together they cling. Let s start with three very basic concepts of electricity. Danish physicist hans orsted was the first to discover that a magnetic field was produced by the flow of electric current. It looks at the way changing magnetic fields can cause current to flow in wires.

Another important idea when it comes to circuits is resistance. For more videos go to. Please scroll down and start reading. When working mathematically with electricity and magnetism you can figure out the force between electric charges the magnetic field from wires and more.

Fun facts about electromagnetism and electric motors some electric generators can be driven by human power such as a hand crank or a bicycle to generate electricity. Where is the distance between and. Electricity and magnetism is an interesting aspect of electricity sciences. Namely electric charge electric current and electric circuit.

The theory of electromagnetism. Electricity and magnetism notes. Every time an electric current flows in a wire it generates a magnetic field all around it. This lecture note covers the following topics.

The electric potential between 2 points is given as. This video will help kids learn all about electricity in a simple and easy way. But what is electricity really. Part of physics ii for dummies cheat sheet.

Basically it is a formula concept that describes how potential difference voltage difference is created and how much is created it s a huge concept to understand that the changing of a magnetic field can create voltage. Coulomb s law superposition energy of a system of charges basic field concept flux gauss s law fields and potentials around conductors the electrostatic uniqueness theorem rc circuits thevenin equivalence forces and fields in special relativity. Resistance is basically a measure of how much resistance opposes an electric current. It s basically field times distance.

Why should you understand electricity current and amperes potential difference and volts relationship between potential difference and current sources of potential difference concept of resistance ohms law dc and ac current why. Faraday basics faraday s law of induction is one of the important concepts of electricity. Suffice it to say that two of the tiny particles that make up atoms protons and electrons are the bearers of electric charge. Electromagnets show that you can make magnetism using electricity.

In fact as european scientists discovered in the 19th century electricity always makes magnetism when it moves about or changes.