definition of physics the science of matter and energy and their interactions
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Definition of electronics
the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices
VTS_01_3.wmv
There are two types of electricity;
Static Electricity. ( this is a build up of electrical charge on insulators)
Current electricity. Easily the most important and useful form. This type flows along conductors. Moving currents can produce heat, light + magnetic fields.
1.5V Cell Cells are cylinders which contain complex mixtures of chemicals. The chemical reactions inside effectively separate + and - charges and produce an electrical current