How to choose the right Resistor

Watch this video to find out how to choose the right resistor and how resistors can set on fire if the right one wasn't chosen.

Every little helps :)

[christophdiester]

"keep your eyes on the resistor"
*Resistor goes up in flames*
Me: "Dang! Almost missed it!"

[kingluketheth]

This video is five years old but it's still GOLD. Thank you!

[grzesiekx]

I have learned in hard way.. :/ I have just bought my potentionmeter (just one piece) for my project and I was happy that I calculated everything but I forgot to check how many watts it can take and of course started almost burning! I switched off immidiatelly thw hole circuit and it works so maybe it was just the last moment to do this before it broke down!

[guitC]

very useful, informative video, just what I needed, thank you

[alanshmahlen]

Thanks for this. One of the few videos talking about watts. It's breaking my brain about whether every resistor I've ever used has been wrong, but hopefully I'll avoid some overheating in the future.

[szecyti]

Hey, I was watching the video on resistors and I was wondering if I could connect two car batteries in series to get 24 volts and then use 48 1/4 watt resistors to power my portable electric fan since I have both batteries already. I wanted to ask since I want to leave the fan in my car so that it is still cool when I go back to my car in the airport.

[Mensaje]

Little resister is suited for 3 to 4.5v batteries with at least 5amp or less depending on the device used aswell

[Yashh-txrs]

why being dead sir it's nice channel Thank you for the resistance knowledge although i didn't look properly in my classes when this had been tought just don't die

[Wantar]

I liked the magic trick at the beginning. Hehe. :) Thanks for the nice educational video.

[SHADOW-bgmm]

I have a 28 watt LED strip that needs to be connected to a power supply of 12v, it works perfect with just 12v and no resistor, but all I want to do is dim it just a bit.. current going through, being used is around 2.3 amps, so if I get 5 ohm resistor? 12÷5= 2.4 amps, I'm not sure if that's good, or maybe I should get a? Idk I really think gonna start burning a few resistors till I get it right.. 😟😅

[JonDeth]

*With a lot of D.C. electronics, such as audio preamps, 1/8 watt is often perfectly suitable, but they are unpleasant to work with even if you are assembling a PCB.* Just something for folks to think about.*
On the other hand, when you're ordering 50, 100 or even 1000, the price difference really does add up quickly when purchasing a large variety of values.

*I tend to order large quantities collectively of multiple values, and the 1/8 are sometimes very tempting but since I am still building on perfboard for now until I get to manufacturing my own PCB's, I have some 1/8 watt and greatly dislike them.*
Even on a PCB, I would dislike them but I suppose use them if they are perfectly adequate. *This also goes the other way because I don't like working with 1 watt unless I have to.*

[annerusso]

What size resistor do I need if I’m hooking it to chime for a ring pro?

[kunalguleria]

Very simply explained in a crisp and short manner !! Thanx

[ChristopherClaudioSkierka]

hello, i am learning about this subject currently. I was wondering if you put several of those in 'series' would the same burnout happen?

[barbasbandas]

Hey, firstly thank you for your informative videos. I am a newbie in electronics. I learned a lot from your videos but I have a question. If these are 1/4W resistors, why they dont blow up when using them with a led and a 9v battery? Sorry for the grammar, I am Portuguese. And a merry christmas

[robertrheintgen]

You let the magic smoke out. Yeeeaaah 😊😊

[RKELLEHER]

Howdy, Brother! What resistor should I use if I have a yellow 10mm LED Emitting Diode (1.8-2.2V) powered by two AA Batteries (on/off switch in the loop)? Will 47 ohms work? I'm not even sure if I asked the question properly . Thanks for any assistance.

[theaxman]

in this case youcan use many resistors of 1 watt in parallel, maybe 10 to support 10 watts , or 40 small resistors in parallel

[anoblefish]

how could you know what power rating the resistor is ? a lot of chinese ones don't have any specification aside from the resistance value.

[Johnsmith-yvtx]

what happen if you put 10 of the 15ohm in parallel? what is the watt capability now? and what is the watt being dissipated? probably the current is smaller in each but the voltage the same. Is having 10 in parallel means the total wattage capability adds up like 0.25*10=2.5 Watt now? if you have 1.5watt dissipated it should be fine hypothetically?