This video explains the importance of contacts in electrical switches. It describes the effects of arcing and contamination on switch operation. It also shows the effects of high voltage arcs and the danger of arc blasts.
This video introduces the breadboard, also called a protoboard, used to build electronic circuits without soldering. The first part of this presentation describes the features of a breadboard.
This video introduces the basic electrical quantities of charge, current, voltage, and resistance. The concept of quantities and units is explained. The units of Coulombs, Volts, Amperes, and Ohms are described. The three basic formulas of Ohm's Law (E=IR, I=E/R and R=E/I) are introduced.
This video is part 1 or of a 4-part series of video guided hands-on laboratory activity to help a student understand the proper and safe use of a multimeter to measure current, voltage, and resistance. This video guides the student through the proper techniques for measuring current with a multimeter.
This video describes electrical meters that measure current (ammeter), voltage (voltmeter), and resistance (ohmmeter). It explains how electromagnetic and electrostatic meters work. It also explains the operation of a cathode-ray oscilloscope.
This video demonstrates the use of Ohm's Law to calculate current, voltage, and resistance in a simple circuit.
Note: I plan to redo this video with better graphics for circuit problems, it is hard to see the numbers on the low resolution versions like on Youtube.
This presentation describes the properties that make some elements and materials conductors or electricity, while other materials are insulators. Topic include electron orbitals and shells, free electrons, valence electrons. Introduces the analogy of a wire as being like a pipe carrying water. Describes conductivity and resistance.
This presentation shows how the elements are the building blocks of all matter. It describes the atoms, bonds between atoms, molecules, atomic number, atomic mass (weight), isotopes, atomic excitation and ionization.
This video is part 4 or of a 4-part series of video guided hands-on laboratory activity to help a student understand the proper and safe use of a multimeter to measure current, voltage, and resistance. This video guides the student through the proper techniques for measuring resistance with a multimeter. It is a continuation of Part 3 which begins the topic of resistance measurement.
This is a recording of a class lecture on Voltage Sources. This part describes how current can be generated using magnetism and from the energy of light.
This video is about electrical wires. It describes common types, configurations of wire, and wire terminology. It explain the gauge system of rating wire size (diameter), circular mils, current capacity, and others.
This 2-part video describes the effect and importance of resistance in electrical circuits. This 2nd part looks at switches. This video is based on the textbook "Lessons in Electric Circuits", a free series of textbooks on the subjects of electricity and electronics, written By Tony R. Kuphaldt.
This video is part 3 or of a 4-part series of video guided hands-on laboratory activity to help a student understand the proper and safe use of a multimeter to measure current, voltage, and resistance. This video guides the student through the proper techniques for measuring resistance with a multimeter.
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Racing Secrets. Information on finding a Nascar job, finding sponsors and engine tips.
Racing Secrets. Information on finding a Nascar job, finding sponsors and engine tips.
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![Ohm\](http://img.youtube.com/vi/JRp_iSaVRjE/2.jpg "Ohm\")
![Ohm\](http://img.youtube.com/vi/FwEz9ygPHiM/2.jpg "Ohm\")
