The use of electrical calculations has many applications in engineering, including designing and monitoring electrical systems. These calculations are critical to the design process and require the knowledge of several fundamental concepts. To understand electrical calculations, you must have a good understanding of basic mathematics. In this course, you will learn to calculate current, voltage, resistance, and energy using basic formulas. The course will also cover the concepts of Kirchoff's Law, which states that the sum of the voltage of the source and circuit load is equal to its reciprocal.
There are many types of electrical calculations and phasor diagrams are commonly used in calculations. These are representations of voltage, apparent and reactive power, and resistance. In addition, you will need to know the maximum length of a wire and the current carrying capacity of bare and insulated conductors. You will also need to understand the Joule effect and how to account for future load growth. To learn more about electrical calculations, visit the NEC's website.
The first type of electrical calculation involves resistors and inductors. This calculation is the easiest and most intuitive, but is accompanied by a lot of jargon and terms. In dc circuits, you'll use resistors and inductors, while in ac circuits, you'll use capacitors. You'll need to add in inductors to get an answer for the current and voltage drop. You'll need to know the phase angle of the electrical current in order to understand the frequency, too.