Activities Introduction Elementary Electronic Circuits Construction of Digital Circuits Production of Wind Power Generator Production of Electromagnetic Crane Have Fun in Stamp Collection! Discovery of Postal Services

This is the tropic of 2009 Electronic Device Construction Competition. The crane is made by application of the Principle of Lever and the Ampere's Law (Electromagnetic Induction).

Contents:

1. Electromagnet and electromagnetic induction
   • Magnetic line of force and magnetic field
   • Permanent magnet and electromagnet
   • Structure of electromagnet and the Ampere's Law
   • Construction of electromagnet
2. Suction and repulsion / construction of the main body of the crane
   • Relation between suction and repulsion with the distance of magnets
   • Structure of the main body
   • Construction of the main body
3. Introduction of direct current circuit and its application
   • Structure of various buttons and controlling circuits
   • Construction of the controller
   • Soldering and assembly
4. Efficiency test and display of finishing work
   • Final tuning and problem solving
   • Testing of transportation efficiency