There are 4 basic types of electrical testers that every electrician needs to know how to use, in this video we're going to cover what they are, and how to use them. Join this channel to get access to perks: https://www.youtube.com/channel/UCB3jUEyCLRbCw7QED0vnXYg/join SPONSOR: https://www.kleintools.com ??PRACTICE EXAMS?? https://www.electricianu.com/practice-exams ??MERCH?? https://www.electricianu.com/merchandise ??SOCIALS?? Instagram - https://www.instagram.com/electrician_u Discord - https://discord.gg/7ykYfbh Facebook Page - https://www.facebook.com/theelectricianu Facebook Group - https://bit.ly/2tz7eQh TikTok - https://www.tiktok.com/@electricianu Reddit- https://www.reddit.com/r/ElectricianU/ Twitter - https://www.twitter.com/electrician_u LinkedIn - www.linkedin.com/in/dustinstelzer ??MUSIC AND VIDEO:?? https://www.facebook.com/descantmv ?✍️ART AND ILLUSTRATION:✍️? https://www.daverussoart.com ... https://www.youtube.com/watch?v=ZfWDESUEfmA

?⚡️EU MEMBERSHIP⚡️? Sign up here --- https://www.electricianu.com/electrician-u-membership/ JOIN ELECTRICIAN U - become a member and get: Premium Members-Only Videos Monthly Deep-Dive Courses All of our Practice Exams 300 Question Code Cannon Weekly Lesson Emailed to You Private Members-Only Discord Channel ??CONTINUING EDUCATION?? Sign up here --- https://www.electricianu.com/continuing-education/ State Approved Video Based ✍?PRACTICE EXAMS?✍ Sign up here --- https://www.electricianu.com/electrician-u-membership/ Timed Online Residential Wireman Exam Timed Online Journeyman Exam Timed Online Master Exam 300 Question Online Code Cannon (not timed) Take as many times as you want All of the above come with printable PDFs ??PODCAST?? Spotify: https://open.spotify.com/show/7ldCwdxhWnT0R3nne96XjC?si=a42a98b83c3549fc&nd=1 Apple Podcast: https://podcasts.apple.com/us/podcast/electrician-u/id1583270265 ??SOCIALS?? TikTok - https://www.tiktok.com/@electricianu Instagram - https://www.instagram.com/electrician_u/ Facebook - https://www.facebook.com/TheElectricianU/ Reddit - https://www.reddit.com/r/ElectricianU/ Rumble - https://rumble.com/c/ElectricianU LinkedIn - https://www.linkedin.com/company/electricianu ??Music, Editing, and Videography by Drake Descant and Rob LeBlanc?? #electrician #electrical #electricity ... https://www.youtube.com/watch?v=xat4hLeK9es

Join this channel to get access to perks: https://www.youtube.com/channel/UCB3jUEyCLRbCw7QED0vnXYg/join We have talked about series and parallel circuits. But have you ever wondered how a series circuit works or what it even is? In today’s episode of Electrician U, Dustin covers part 3 of our topic on circuits- Combination Circuits! ?⚡️MEMBERSHIP⚡️? JOIN ELECTRICIAN U - become a member and get: FREE Continuing Education every year FREE Practice Exams FREE Monthly Video Courses FREE Weekly Live Instructor-Led Classes FREE Monthly Educational Newsletter Premium Members-Only Content Private Discord Channel Monthly Members-Only Discord Chats Sign up here --- https://www.electricianu.com/electrician-u-membership/ ??MUSIC AND VIDEO:?? https://www.facebook.com/descantmv ?✍️ART AND ILLUSTRATION:✍️? https://www.daverussoart.com A combination circuit is simply a circuit that has properties of both series circuits and parallel circuits within it. And, remembering that trying to figure out values for Voltage, Amperage, Resistance, and Power each require different formulas depending on what type of circuit it is. So, the easiest way to calculate values for these in a Combination Circuit is to simply start adding all the groupings of parallel circuits resistances together (this will need to be done a few times depending on how many there are) until we are left with a simple series circuit! Let’s review the rules. Voltage- in a series circuit voltage is dropped across each resistance while in a parallel circuit it’s constant. Current- in a series circuit current is constant but is proportional to the resistance in a parallel circuit. Resistance- in a series circuit resistance is the sum of all the resistances while in a parallel circuit it is the inverse. The formula for wattage in a series circuit Pt=I squared x Rt and in a parallel circuit its P=E squared/Rt. Let’s do one. Say we have a 100v power source and a combination circuit of 7 loads with the following resistances- R1-1, R2-2, R3-3, R4-4, R5-4, R6-3, R7-2. R6 & R7 are in parallel with each other, R4 & R5 are in parallel with each other, and those 4 are in parallel with R3. We will add R4 & R5, R6 & R7, and then add those together and then add it to R3. Since each set has only 2 resistances, we can use the product over sum method. Adding R4 & R5 we wind up with 1.7 ohms. Adding R6 & R7 we end up with 1.2 ohms and adding those together we have 2.9 ohms. Now we can add R3 and R4567 and have an end result of 1.18 ohms! Now we have 3 loads in series with one another and can complete our calculations! The total resistance of our circuit is the sum of all the resistances- 1 + 1.18 + 3= 5.18 ohms. The total amperage of our circuit is the voltage divided by the total resistance- 100/5.18 ohms or 19.3 amps. Voltage is dropped across each load and is equal to the source voltage. The formula is amperage multiplied by the resistance = voltage. R1- 19.3 x 1= 19.3v. R2- 19.3 x 1.18= 22.8v. R3- 19.3 x 3= 57.9v. Add those together and we have 100v or our source voltage! Lastly, we have the power to work out. Amperage x the voltage of each load = the power consumption of each and we would add those 3 values to get our total circuit power. P1- 19.3 x 19.3= 372.5w. P2- 19.3 x 22.8= 440w. P3- 19.3 x 57.9= 1117.5w. And our total power for the entire circuit is the additive of these. 372.5w+440w+1117.5W=1930w. We hope this has been helpful in understanding how combination circuits work. Make sure to check out the other 2 videos for Series Circuits and Parallel Circuits! Both are super helpful in understanding how each one works and how they come together in a Combination Circuit! Is there a topic you would like to see discussed here on Electrician U? Leave us a comment in the comments section and let us know. Please continue to follow Dustin Stelzer and Electrician U as we are constantly updating our content to assist our followers in becoming the best electricians that they can be. #electrician #electrical #electricity #parallel #circuit #voltage #current #resistance #power ... https://www.youtube.com/watch?v=xYK19P3txn4

Join this channel to get access to perks: https://www.youtube.com/channel/UCB3jUEyCLRbCw7QED0vnXYg/join Pre-twisting your joints under a wire nut has been and continues to be an ongoing debate amongst most electricians for years. Some tradesmen do and some don’t. So, which is the correct way to do it? In today’s episode of Electrician U, Dustin sheds some light on the subject. ?⚡️MEMBERSHIP⚡️? JOIN ELECTRICIAN U - become a member and get: FREE Continuing Education every year FREE Practice Exams FREE Monthly Video Courses FREE Weekly Live Instructor-Led Classes FREE Monthly Educational Newsletter Premium Members-Only Content Private Discord Channel Monthly Members-Only Discord Chats Sign up here --- https://www.electricianu.com/electrician-u-membership/ ??MUSIC AND VIDEO:?? https://www.facebook.com/descantmv ?✍️ART AND ILLUSTRATION:✍️? https://www.daverussoart.com The topic of pre-twisting your wires prior to putting a wire connector on has been one of the most widely debated practices in the electrical industry. And it continues to be one to this day! On one half of the divide are the tradesmen/electrical contractors that say that pre-twisting your wires will make a solid connection even when the wire connector is removed. On the other half of the fence are the tradesmen/electrical contractors that say pre-twisting your wires is a complete waste of time. With 2 clear lines drawn in the sand, how do we know which is actually the proper way to make up our wires? To start the debate, let’s talk about the wire connectors themselves. Wire connectors of past years were not made the same as they are today. I think we have all been there- out on a service call trying to troubleshoot something only to find that there was an old wirenut that had loose conductors within it that dropped power to some device. Expansion and contraction of the wire from being energized/deenergized, stuff being plugged in and out could have the wires worked loose if you didn’t twist them together really well. But todays wirenuts will actually twist the wires much better than the old ones did. You can strip your wires, put the wirenut on, and when you remove it, your wires will be reasonably twisted together. Today also, we use a lot of pressure type wire connectors (push in type) that actually do not spin the wires at all. On the other hand, as we have all been there too, trying to add or rework something where someone had twisted the wires together can be a time-consuming process. Having to untwist the wire bundle to add or remove a conductor and then having to straighten all the stripped wire out can be a royal pain! And again, many wire connections today rely on pressure type connectors and not a twist-on type wire connector and require no twisting at all, which results in a much faster installation. In the end, it comes down to personal (or corporate) preference. Many of us become very proficient at the art of twisting the wires and the amount of time added is negligible when compared to the solid connection we get. Follow the manufacturer’s instructions for the specific type of wire connector you are using also. If the instructions tell you to pre-twist the wires, then pre-twist them. If it does not specifically tell you, then do what you, as a professional tradesman, feel gives you the most solid connection. The end result should be a joint that won't unintentionally come apart and will stay a solid connection. We hope this has been an insightful look into the argument of whether to pre-twist your wires or not to pre-twist your wires. Is there a topic you would like to see discussed on Electrician U? Leave us a comment in the comments section and let us know. Please continue to follow Dustin and Electrician U as we are constantly updating our content to assist our followers in becoming the best electricians that they can be. #electrician #electrical #electricity #twist #wirenuts ... https://www.youtube.com/watch?v=UCMiqRvaOVA