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<previous BASIC ELECTRICAL THEORY 4 next> METHODS OF PRODUCING VOLTAGE Electrochemistry Chemicals can be combined with certain metals to cause a chemical reaction that will transfer electrons to produce electrical energy. This process works on the electrochemistry principle. One example of this principle is the voltaic chemical cell, shown in Figure 11. A chemical […]
<previous BASIC ELECTRICAL THEORY 3 next> UNITS OF ELECTRICAL MEASUREMENT System International (SI) Metric System Electrical units of measurement are based on the International (metric) System, also known as the SI System. Units of electrical measurement include the following: Voltage Voltage, electromotive force (emf), or potential difference, is described as the pressure or […]
<previous BASIC ELECTRICAL THEORY 2 next> ELECTRICAL TERMINOLOGY Knowledge of key electrical terminology is necessary to fully understand principles in electrical science. Conductors Conductors are materials with electrons that are loosely bound to their atoms, or materials that permit free motion of a large number of electrons. Atoms with only one valence electron, such […]
