Doing math, for many people, is one of the things that holds them back from advancing in their career as an electrician. “I’m just not good at math,” I often hear. Knowing how to apply Ohm’s Law calculations in the field is crucial for your ability to think critically, on the fly, about what may be happening in a circuit – and electrician math is really not that scary. Let’s dive in.
Category: ELECTRICAL THEORY
Electrical power is often expressed in two units, Watts and VA. Wattage and Volt-Amps rather, get misused because many people do not understand the differences in them and when they should be used. In this episode I break down the differences in the two terms and how they relate to one-another in the electrical industry.
Electric current is one of the hardest things to wrap your head around when you’re first getting into the electrical trade. Many apprentice electricians get confused with the difference between current and amps. Well, that’s because people talk about electrons and charges and interchange the terms without really knowing what the difference is.
In order for electricity to work, there has to be movement. Static electricity still needs movement to occur in order to discharge and equalize charges. The only way that movement becomes useful is once there is a difference of potential present. That is what voltage is all about.