This video introduces the principles and terminology of mechanical electrical switches. It covers terms such as contacts, normally open, normally closed, poles, and throws.
This presentation shows how contact between different materials can result in attraction or repulsion. Experimental results are discussed that led to Ben Franklin's one fluid theory of electricity. It explains how clues were found from rubbing different materials together.
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 is part 2 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 voltage with a multimeter.
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 presentation illustrates the one fluid theory of charge first described by Benjamin Franklin. Also explains conventional versus electron current flow.
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 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.
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.
![Ohm\](http://img.youtube.com/vi/JRp_iSaVRjE/2.jpg "Ohm\")
![Ohm\](http://img.youtube.com/vi/FwEz9ygPHiM/2.jpg "Ohm\")
