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# Fundamentals

### Using a Multimeter

This article introduces the basic concepts of multimeters and explains how to use them for basic measurements. Multimeters are one of the most useful electrical and electronic aids available to us. Effectively they are...

### The Dreaded Ohms Law

In a previous article we looked at the power formula, and discussed the relationship between power, voltage and current. Having looked at the power formula, there is now only one more formula needed to...

### What is Electrical Power?

What is electrical power? What is the formula for electrical power? What is watts, volts and amps? This article introduces and illustrates these electrical basics and in particular the power formula. As this is...

### AC and DC

This article looks at some basic concepts and misconceptions of AC and DC electrical circuits. There are no formulas involved, just explanations to some commonly asked questions like:
What is AC and DC? What are...