Basic Electricity Lesson Basic Electricity Safety should always be the first concern whenever the task involves electricity. All State and Local Safety Codes should be followed when performing any procedures outlined in this or any of our training modules. Never test a system without first testing for improper shorts or grounds.
All matter consists of atoms.
All atoms contain electrons. There are two bands of electrons, an inner and an outer band. The free electrons travel in the outer band. Any material containing atoms with free electrons is considered a conductor of electricity. The more free electrons a material has, the better conductor of electricity it is.