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Just read the brief blocks of text, view the videos, and check out some of the screened internet links. This is the easiest, fastest way to learn basic electronics. No sign-up requirements and it is free. The menu table above provides easy access to many interesting electronics topics.
Take your time and enjoy. Everyone today is exposed to electronic devices in one way or another. The computer revolution is a good example.
Everyone can benefit from additional knowledge of electronics. Even a quick scanning of this page will help. Obtain and study various books on electronics - this is really a must as each author will explain things in a little different way to help you grasp the concepts. All the internet links to other web sites found on science.
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If you need more instruction - read on.
Maybe you already know some basic electronics and want to test yourself to see exactly how much you do know. Electricity is the movement of electrical charge from one place to another.
Electric charges do not exist without their associated electric and magnetic fields. This module will introduce you to many of the basic concepts involved with electricity and magnetism. Matter consists of atoms. Now we will introduce you to the structure of atoms, talk about electrons and static charge, moving charges, voltage, resistance, and current.
All matter can be classified as being either a pure substance or a mixture.
Matter can exist as either a solid, liquid, or a gas and can change among these three states of matter. In electronics the most important matter are conductive metals, and non-conductive insulators.
Here we will stick to thinking in classical physics terms. Nobody completely understands what this charge consists of but we do know a lot about how it reacts and behaves. The smallest known charge of electricity is the charge associated with an electron.
This charge has been called a "negative" charge. An atoms nucleus has a positive charge.Continuing from our brief introduction to the basics of car audio electrical theory and Ohm’s law, we are going to talk about DCl circuits.
The math involved in accurately calculating impedance and power in AC (alternating circuit) circuits can get quite complicated. An Aside on Amplifier Power Calculations.
Understanding Power in Alternating Current Circuits The basic concept of power in an AC circuit is the same as for a DC circuit, but some calculations need to be completed before we can apply Ohm’s law.
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Bibliography This web site is being maintained by John R. Barnes, who was the President and Chief Engineer of dBi Corporation from to September 30, , when we closed because ObamaCrap made it too expensive for us to remain in business.
A diode clamping circuit may be used to limit the output voltage to a particular range. In the diagram, the input signal is not allowed to rise above V or to drop below V.
This circuit is also called a limiter and is typically used to provide protection to a large amplifier . A Note to Politicians - Remember what public service means.
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