Flux, Capacitance, Difference Potential, and Volt

AI Thread Summary
Flux refers to the flow of electric or magnetic field lines through a surface, while capacitance is the ability of a system to store charge per unit voltage. Difference potential, or voltage, measures the electric potential difference between two points in a circuit, indicating how much energy is available to move charges. When you see a value like "3 Volt," it signifies the potential energy difference that can drive current through a circuit. Understanding these concepts requires foundational study in electronics, and resources are available for beginners to grasp the basics.
robwashere
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I have a question about electricity and magnetism. My teacher went through these chapters in 3 days, and I am completely confused. Can some body please explain what exactly is flux, capacitance, difference potential, and voltage? And can you also explain to my what the number stands for when solving for each one? (Ex. 3 Volt, what does that mean?)

Thanks!
 
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robwashere: Welcome to Physics Forums!

No one here will spend time and energy teaching you these BASICS of electronics. That would be called “spoon feeding the student”. First you need to study and try to grasp the concepts…they are NOT difficult or complicated. After you make your efforts, and if you have some specific doubts or questions, then definitely return here and ask them. Many experienced scientists and engineers here are ready to help you.

Google "basic electronics". Here are two sites to get you started. Keep a notebook.

Study Phase I: Electricity and Phase II: Components

http://101science.com/Radio.htm

This site is good introduction for people who have never studied electronics:

http://www.clear.rice.edu/elec201/Book/basic_elec.html
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
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