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This site offers an interactive introduction to electric circuits covering the basics of circuits and leading up to conductors, insulators, switches, and circuit diagrams. Easy to use with bright colors, The Blobz Guide to Electric Circuits presents the perfect introduction to circuits for the elementary student. Students follow Bob and the other Blobz through five lessons on circuits. Each lesson begins with background information, moves to an activity using drag and drop, and then ends with a quiz. 

A science resource about electrical circuits. Build a lots of circuits based on instructions. http://ictmagic.wikispaces.com/science

There is no better way of learning about circuits than to get out the wires and play. But this is a good resource that helps you teach about circuits and how to build them. Good as an introduction to the topic. http://ictmagic.wikispaces.com/Science

"Superb adventure platform and puzzle game which teaches about electricity and electrical circuits, designed by the engineering department at the University of Cambridge. Play in your browser or download from Steam."

A good interactive resource with information and activities about making electrical circuits. http://ictmagic.wikispaces.com/science

A good flash-based resource about electrical circuits. Users are show information and given tasks to complete. http://ictmagic.wikispaces.com/Science

ACREL ADW220 WIRELESS MULTI CIRCUITS ENERGY METER ADW220 wifi smart energy meter 3 phase is mainly used for measuring the full electric parameters of multiple three-phase circuits, which can be connected to up to four three-phase circuits with one main module. Can directly or indirectly measure voltage and current, power, power factor, phase Angle, unbalance degree, harmonics and other parameters.Optional switch 8AI4AO, temperature 12NTC, Leakage current 4L and wireless communication module.

Acrel APM series multi functional meter is designed according to IEC standards and synchronized with international advanced technology. It has the functions of total electric quantity measurement, electric energy statistics, electric power quality analysis and network communication, mainly used for the comprehensive monitoring of power supply quality. This series of multifunction digital meter adopt modular design, which can flexibly realize the measurement of electric circuit and switch state monitoring.

A45 CNC spark erosion machine has three-axis simultaneous control and 5th generation electrical discharging control system, best surface finish Ra≤0.08μm, Min. electrode wear ≤0.05%, standard equipped with 50A controller and Max machining efficiency ≥500mm3/min. Excellent performance and suitable dimension make A45 ideal for making various molds with the strict requirements of surface finish and accuracy.