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Basic Test Instruments

Voltage, current, resistance, and power are fundamental electrical terms. We have taken a look at the definition of each, and have discussed calculation methods...

Basic Electrical Calculations

Electrical calculations generally fall within two categories: dc circuit analysis and ac circuit analysis. In a typical engineering curriculum dc circuit analysis is introduced...

Electrical Fundamentals — Basic Electric Circuit Theory

A little bit of history is in order before we get into AC and DC circuit theory. In the latter part of the 19thcentury...

An Introduction to Electrical Fundamentals

By strict definition a material can be classified as either a conductor, an insulator, or a semiconductor based on its electrical properties. Before getting...

What are you paying for electricity? Part 3, Commercial Electric Rates

To protect your and your company’s wallets, it is very important to understand the rates for which you are being charged for electricity. In...

What are you paying for electricity? Part 2, Residential Electric Rates

To protect your and your company’s wallets, it is very important to understand the rates for which you are being charged for electricity. To...

What are you paying for electricity? Part I, Load Management and...

Electric utility rates vary greatly from utility to utility and from state to state. To protect your and your company’s wallets, it is very...

Basic Electricity – Part 10

In part nine of this series, I discussed the development of the phasor diagram, a graphical representation of voltage or current magnitude in ac...

Basic Electricity, Part 9

Phasors It is time to bite the bullet. Before we can continue into three-phase electrical circuits and calculations, we have to have a solid understanding...

Basic Electricity, Part 8

Inductive reactance Electrical resistance is not the only property of materials that resists the flow of current. Let us consider an experiment. Let’s purchase a...
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