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View Resource Generation of Alternating Current

Based on work from the Wisconsin Online Resource Center, Teachers' Domain presents this interactive with reading material and animations to help students learn how a basic generator produces alternating current. The lesson includes graphics that show how the different components of a generator (slip rings, brushes, armature loop, and magnetic field) work together to produce single-phase and...

View Resource Generating Electrical Voltage

Teachers' Domain presents this interactive lesson designed to help students "learn how a generator converts mechanical energy into electrical energy. Investigate the principle of magnetic induction by moving a conductor through a magnetic field to see how voltage is generated." The lesson is divided into three major sections: How Do Generators Work?, What Factors Influence Voltage Strength?,...

View Resource Dynamos, Magnetic Reversals and Plate Tectonics

These pages, authored and curated by David P. Stern, describe a dynamo process that creates the magnetic fields of the Earth and the Sun. Flows of electrically conducting material through existing magnetic fields produces electric currents, which maintain the magnetic field. Dynamos in the Earth's core reverse their north-south polarity, a process recorded by sea-floor magnetization, which...

View Resource Electromechanical Devices, Systems, and Applications Digital Library

These interactive learning objects focus on concepts that cover a broad-based electromechanical program. The majority of these objects have been created for electronics, but during the next three years (until 2008), at least 300 more objects will be built that will focus on other topic areas such as hydraulics, pneumatics, mechanical design, and process control (see complete list on the left side...

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