What is a resistor?
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- Опубліковано 12 гру 2012
- Find more information on: www.resistorguide.com/what-is-...
Resistors are passive electrical components that limit electric current. This video explains in an easy way the most basic background to help you understand resistors and use them. - Наука та технологія
Very nice lesson. Easy to understand and nicely put together :D Bravo!
Wow this was way more in depth than I thought it'd be. Thanks!
Awesome video! The LED example made me understand it better. Thanks a lot
Man thank you for clear my mind on this resistor presentation
6:10
You said 'the colour band is grey' but highlighted the green band on the table. I think it would be better if you put a caption for correction because I see many people bewildered by the contents of the video. Other than that, pretty well explained. Great job
that's true
7 years on bro....you're sh*t's still important ✌️
Thank you. That was brilliant - explained simply and clearly. Always thought resistors looked like Liquorice Allsorts. :)
Good summary of what a resistor is and the various types available.
Thank you, this video made some things very clear!
Well done!
np
thank you so much! loved the example with the light - made me understand why its important to have a resistor
Thank you. I was able to understand the explaination easily. Good Video!
thanks
Awesome explanation, thank you for the video!
Just Amazingly explained! Thank you!
faith in humanity restored. thank you for your to the point 0 fluff tut. Your a great speaker
I love your website.! Very helpful. Thanks
Sir really good .Very clear voice easy to understand. Thanks
I enjoyed your video. It was very helpful. Thank you!
Hi there
Nederlands accent herken je altijd!!!
Toch goed geprobeerd.
Ja, zeker weten dat meneer weerstand een nederlander is. Tenslotte sluit hij ook nog de LED verkeerd om aan.
I'm glad you explained how resistance affects the "LID" ;)
Thank you for making it understandable for someone like me with no knowledge of electronics.
Hi there
Very informative! Thank you!
thanks, very interactive and clear 👍
This version of the essential resistor was designed and developed in 1959 by Chicago inventor, Otis Boykin.
Mr. Boykin would later become better known for his next invention, a control unit for the pacemaker, which used electrical impulses to stimulate the heart and create a steady heartbeat.
Thanks For your information. This Information will help me
You should include the voltage drop across the LED when calculating the resistance required to produce 30mA. Typically, red LEDs operate at 2V. So the calculation should be (9V - 2V)/0.03 = 230 ohms. However, with 300 ohms, the current will be 23mA, which is better than 30mA, because you should never operate any device at its rated maximum.
you should cheer for a better team
great video. helped me understand. thanks a lot
Excellent video! Thank you so much!
Thank you for this video, i gained lot of information about resistors which I could also share to my students
Wonderful. Great lesson for beginners.
yeah
Nice video. Thanks for uploading.
Thanks!! Nice Explanation
great presentation please keep the videos coming
Finally i got to know about the resistors thank you 🙏
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well explained man... great work.. keep it up.
thanks for your video.
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thanks this was help full for my casp report
Thank you very much that was very grateful short video basic knowledge
Thank you so much over a year I am trying to understand this but, you did it to get me understand; by diagram examples with water pipe. | once again thanks___
Great video. Thank you
Nice video I really liked it!
Thanks for this tutorial.
That helped me a ton, thank you.
Hi there
"the third band is grey.." picks the green one -_-
+Niels Langeweg He's color blind
+Niels Langeweg Just stay away from the light
exactly. wtf is going on?
also said it has x10k.. lol.
lol
would you please tell me if you know that in the 6 minute and 9 seconds you; it seems make the grey band calculate with a green value .....if this is so then you may want to indicate a correction and give the video the high standard you have with the rest of it , for the sake of those who are less able to deal with errors in their self educating. I appreciate the hard work you all put into the priceless videos on youtube in this field. thanks john
great explanation thank you
Thanks for the lesson
this 6 minute video explained more than all of grade 9 science.... Thank you!!!!!!!
Thankyou :)
+Sylvie Ruland hi hello
you aur so sexy girl
@@sylvieruland8697 Science sucks
Great lesson ❤
Excellent information.
thank you for your information.
Nice info, thanks for sharing :)
Wow this helped me soooo much!!! Thanks alot! :D :)
good video.... i came to know about resistors.. thanks a lot
thank you so much, now i am pro because i learn lots of thing from your video
Amazing, thanks!
very clear explanation.
Thank you for the excellent video !!!! Ken
Excellent explanation
thats a great explanation..
Excellent...man I'm fine right now you..you are a really great.. Thanks
I love to much electronics ...
Regard
Najeeb toor
Thanks for clearing my doubt.
Thank u guys for helping me
Very Good tutorial.
best explain !!! thank you
Thanks for the info...
awesome video.
Hi, when a current enters the resistor does it decrease the amount of electrons and we get
less electrons comes out of resistor (at the other end) OR it (resistor) decreases the speed
of electrons and we get slower electrons coming out from the other end of the resistor?
Also when we say that 2A is going through resister R , does that mean before entering the resister or after the resister?
Please help
Sharing information and thank you
Awesome introduction thumbs up and subscription , regards
thanks
Does resistor delays power consumption? i had a case of smoke generator that i mdel a coil out of vape wire and a 5v fan and the power was 7.5volt 1000mah rechargeable battery, it runs for roughly 8 -10 minute and the power will ran out, one of the biggest reason i'm thinking on adding a resistor was i hope it would slow down the flow of the current but does this actually means same amount of power would still be wasted ? and that protects the fans and the heater wire coil from burn out?, i'm working on my second homemade smoke generator for my RC(remote control) tiger 1 1:16 , but this time the boiling chamber was much more compact and smaller which made the smoke liquid runs out even faster and the coil would caught lit up with fire and later extinguish itself when the oxygen in the bottle was used up, i still had a lot of adjustment to do with this smoke generator , improved until it was much more feasible to use than conventional aftermarket smoke generator.
Incredibly informative video... I never knew what the color strips meant on a resistor. Thanks!!!!!!!!!!!
The LED part is inaccurate, since you didn't take into account the voltage drop on the LED. A 3mm red LED has about 1.7V drop across it, so the drop on the resistor is about 7.3V. The correct equation is R=7.3V/30mA, so R=243.333Ω
+yotam amit Yep, i noticed that too.
I think he was trying to simplify it
Thanks, from now I start to learn electronic
Great video; however, I see two mistakes right away. 1st one is the LED itself, its hooked up backwards, shorter leg is usually/normally always negative. The 2nd mistake is that he chose the wrong value of the resistor's Multiplier, even though he did say the right one (he chose green instead of gray).
@Brian,
I am starting my first project. I need someone with knowledge to review my project contents and recommend missing/needed resistors, etc to complete my project to fully function able in all areas. Can I resource you? I have a handicap that limits the way/method I obtain knowledge. Hence the “first” time, I need guidance/ assistance.
I am determined not only to complete this project… but obtain. Skills to complete a total of 250 projects on my own….later on.
Most Humble Appreciation! Alton
It looked better in this way,this video is more theory than practical
very good.thank you so much.
Nice vid dude thx!
great video thanks
great chapter
Yes, when you connect two or more resistors in series in a ckt, (i.e R1 & next to it, R2, R3), each resistor values (ohms) "R" are added, as to find Equivalent Resistance Requ= R1+2+R3, while calculating the current flow I=V/(R1+R2+R3)=V/Requ. The reason is , the voltage potential at the first resistor arriving at the resistor R1 is taken as Voltage for calculating current flow on each resistors in series. Hence, the current flows on all the resistors will be the same, but with drop in voltage.
No I don't think that is correct.
By ohm's law: V=(A)(R)
The higher the resistance, if the amperage stayed the same, voltage would also rise proportionally; obviously, that is NOT what happens, resistors do not add voltage.
If the voltage stays the same (given a potential differential = X from a given source like a battery) and if we change the value of the resistor, then what must change is the current to make the numbers add up:
V=10 R=10 , 100 , 1000 A=X
1. 10=(x)(10) A=1
2. 10=(x)(100) A=0.1
3. 10=(x)(1000) A=0.01
The higher the resistance = the LOWER THE CURRENT.
This is amazing. I have a question though. why does a resistor have to be on the positive lead?
I understand that the assumption of the current direction ( from +ve to -ve ) was a mistake bcuz scientists when they were first working with electricity, they didn't know about the structure of an atom. Shouldn't we adopt the correct direction then to prevent the LED from burning out? which is from -ve to +ve?
(Thank you in advance for any help you might be able to provide)
Thank you so much!!
At the 2:28 mark you converted the mille amp ( 1/1000th ) of 30 to 0.03 to give 9/0.03 . Others may not have caught that if they were just checking the tutorial out.
whats a mille amp???
Theres something wrong in this video but we can adjust for simple error ...make sure to be more strict in posting video to help more newbies but u explain well about the topic sir god bless and more power...
really thankfull, I confused in register and resistor
Excellent video. I learned a lot. I am 67.
you got yourself a subscriber
it's really very good
wow.. thank you for this
good guide
nice information
Helpful thanks
Great vid, thanks for sharing. Do you know where I can find an electrical board hr51a? It is used for charging an 18v. There is only 4 parts on this board, 3 are resisters I don't know what the other part s is. It is a cylinder shape thing with 3 loops around it . Two brown and one black. Thanks
sounds like an inductor
Very helpful
Tq sir. nice job
So amazing
if you take the example of a hydraulic pipe then when the flow of the water is resisted hence creating pressure and the same happens with resistors then shouldn't the voltage shoot up in relation with the flow of electrons? just like when you press the tube of a vinyl pipe when water is flowing through it?
So does the resistor change its Ohms if connected to something else ? Like, using that same as in the LED example, with another 45mA LED, will that same resistor switch to 200 Om ?
Or is that value a constant depending on what ? The material that resistor is built with ?
Can that same transistor be used for some high voltage stuff like city electrical connections with 1.000.000 V ? If no why not ?
A good knowledge
whats up with that colored code resistor ? does that thing actually physically change colors with different voltages applied to it ?
thank you sir
nice video