Chapter 1: Introduction of Electrician
1.1. Principles of basic Electrician
The three basic principles for this tutorial can be explained using electrons, or more specifically, the charge they create: Voltage is the difference in charge between two points. Current is the rate at which charge is flowing. Resistance is a material’s tendency to resist the flow of charge (current).
1.2. Commercial and Industrial system
In order to make sense of the Code, you must first understand basic electrical concepts such as voltage, amperage, resistance, Ohm’s law, wattage, circuit theory and others. An obvious foundation for all electrical installations is a thorough knowledge of the laws that govern the operation of electricity.