Why Resistors Are Used In circuits

[@EngineeringMindset]

*These videos take a long time to make* if you would like to buy Paul a coffee to say thanks, link below: ☕ PayPal: www.paypal.me/TheEngineerinMindset Channel membership: kzbin.info/door/k0fGHsCEzGig-rSzkfCjMwjoin Patreon: www.patreon.com/theengineeringmindset

[@tmhchacham]

I like these short ones covering the basics. This one could have used just a little more elaboration to drive the point home. But the basic short video format is amazing for the basics in any case.

[@montech5647]

VERY basics.

[@frunomaol5069]

Short, sweet and perfect as someone else has said. I knew resistors, resisted flow, but I didn't know that caused a voltage drop. A light bulb moment, thanks.

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@dougjohnson4266]

You did not really explain why they are used. The question is why would a 9 volt battery be used in the first place? Why not use a 1.5v battery or a power supply that fits the LED needs in the first place? How much electricity is wasted using a resistor? The answer should have started with something like it is to expensive to provide each electronic circuit with the exact voltage needed so we take one standard power supply and reduce the voltage down to the different circuits needs.(something like that.) Sorry to complain, I do really appreciate your work on these videos.

[@ivarnordlkken8082]

A LED needs at least 2 V to light up. So you need a bigger battery than 1.5 V.

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@EngineeringMindset]

Seen the new LED explained video? so much detail covered! kzbin.info/www/bejne/hWmwY61ona6Vl8k

[@ursa0607]

I recently learned that a combination of capacitors, induction coils and resistors can limit the frequency that the cables allow through. I did not understand exactly how the process works, so if you could make a video explaining why it happens and how it can be used, that would be awesome!

[@matthewhodge4215]

I wanna see a video about filter circuits as well

[@okann_hasan]

Capacitors act like short circuits for high frequency and like open circuit or resistance for low frequencies (as you can confirm from the formula X=1/2pi*f*C) so it might be considered as a high pass filter

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@mikechiodetti4482]

You do basics GREAT!

[@jomirife]

great visualization, I love electronics 😉

[@alaaal-rimawi3769]

I like your video and your simple explainaton and i love your presentation. Really good work

[@Josh-b3c]

In your LED example you should have explained how you determine how much current each resistor would allow also how much heat the resistor would need to be able to dissipate and the voltage drop crossed it

[@tino_S]

these are snippets from actual videos he has made I'm sure if you look at the led design videos he has made you will get this information.

[@OrganicStuff1]

That would require too much effort , we in for the KZbin monies

[@rayzerot]

No Josh. No he shouldn't have. The video is called, "Why resistors are used in circuits" which is what he explained. If he put in the things you wanted it would be a different video. Maybe something titled, "The calculations of electrical resistance"? Edited for a typo

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@EngineeringMindset]

Seen the new LED explained video? so much detail covered! kzbin.info/www/bejne/hWmwY61ona6Vl8k

[@FARUKHMURAD98]

That's cool method of explanation...... love it . please make videos on smd components like this animated video.... please

[@KurtRichterCISSP]

Great video. It would be helpful if you put the math involved in the graphic even if you don't necessarily take the time to restate it in the voiceover. Thanks!

[@felixtremblay3627]

High School Math The resistor's current I in amps (A) is equal to the resistor's voltage V in volts (V) divided by the resistance R in ohms (Ω): I = V/R edit: Called Ohm’s Law In the video he uses a 9 Volt battery in the circuit V = 9V and a 450 Ohm resistor R = 450Ω. I = V/R = 9V/450Ω = 0.02A

[@call_me_mado5987]

Ohm's law states that Current=Voltage/Resistance In this case he needs the LED to only have 20mA of current and there was a 9V battery so you just do 0.02A=9V/Resistance so resistance (R) =9V/0.02A which is 450Ω Basically the resistor acts like kind of like a valve for the current to flow, so the resistor is used to limit the current so it doesn't cook the electrical components.

[@looking9175]

Voltage/max current=resistor value 9/.02=450

[@felixtremblay3627]

@@looking9175 Yes as multiple forms ie. V = IR or I = V/R or R = V/I depending on what value you need

[@EngineeringMindset]

We have so many videos on that already. This is just a snippet from a longer video. Please see our detailed long form videos

[@malandr1]

Thanks for the video ! Please add it to your Electricity basics playlist

[@kimhokchoeng9607]

straight to the point, thank you!

[@aaronburratwood.6957]

Short & sweet. Perfect. I’m about to but 28 X 250W solar panels on my garage, can you do something about solar panels to battery storage & usage please? Electrical has always been the hardest thing for me to grasp.

[@EngineeringMindset]

Seen our new video on HOW SOLAR PANELS WORK in detail kzbin.info/www/bejne/j6nXaGWXec95nbs

[@airwaffle]

very useful video. i was about to build a circuit without them

[@ashranulum1898]

Well Explained in a such a short Compact, concise video

[@felixandersen3815]

Frickin love your videos man! Could you do one on solar panels?

[@EngineeringMindset]

It's high on the list, will cover for sure

[@EngineeringMindset]

Seen our new video on HOW SOLAR PANELS WORK in detail kzbin.info/www/bejne/j6nXaGWXec95nbs

[@felixandersen3815]

@@EngineeringMindset This is some amazing service! I'll give it a look for sure 😄

[@darrengreen2592]

Short and sweet

[@dancoulson6579]

With the 5 band, blue, ,etal film resistors. How do I know which way to read them. The tolerance band is brown, but often times the 1st value band is brown too. There doesn't appear to be a larger gap or anything to denote them from being the value or tolerance band.

[@TheHuntermj]

I've often wondered about their role in circuits where they are connected from ground to positive, like in an amplifier, how do they not just short it?

[@AnasAl-Dhafiri]

Thank you and please continue about electronic lessons

[@adrianbravo7623]

Can you do more videos on pcb circuit designs that you make?

[@abhilashms3178]

Thanks for this video

[@vince6829]

Thanks for sharing your knowledge

[@rokibulislam1971]

Make a video on how the palm controller works

[@ERIKNOWAKK]

Could you make a vid why capacitors are used in circuits?

[@rayzerot]

The quick answer (but not the simple answer) is that capacitors are used to add a phase shift to the voltage in a circuit. At least that's why they use them with motors, compressors, and the like.

[@DinJaevel]

Thanks for the video and I am absolutely happy that it didn't become a "short" they are rubbish.

[@thawzinkhant1759]

Thanks 🙏 very nice informative video

[@solapowsj25]

Thank you🌹.

[@AmericanOne9621]

Love your channel...amazing

[@masegomodukanele9883]

Short and still gives full knowledge on Resistors . I like this ✌🏿💞

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@sevdasivri7916]

Board on the assembly and touch up 👍

[@nailcuttershow1167]

Would you please do the Automatic Transfer Switch of solar and electrical using contactors?

[@EngineeringMindset]

Seen our new video on HOW SOLAR PANELS WORK in detail kzbin.info/www/bejne/j6nXaGWXec95nbs

[@aA-iv5fg]

gracias 😀

[@Jan-df7wz]

I am a little bit confused. Isnt the LED-example wrong in regards of the current? Usually you have a Voltagedrop of about 2V (depending on the type) on the LED. So the Voltage at the resistor is about 7V and thus the currents arent the one shown in the video. Or am i missing something?

[@EngineeringMindset]

Please watch out led design video

[@Jan-df7wz]

@@EngineeringMindset Thx for your response! I watched it and im still confused. The Values in the LED design video are what i would expect. But the current values in this video still doesnt make sense - only if the LED has a voltage drop of 0V.

[@Bernie_the_Bolt]

You are correct, the voltage drop across the diode should be included in the calculation.

[@EngineeringMindset]

Oh I see now what you're saying. Looks like I forgot that in the animation. Apologies. The actual LED design video is much more detailed though, please ignore this video and watch the long version for calculations

[@Jan-df7wz]

@@EngineeringMindset Thx for your response! Okay, thank you for your explanation and - of course - for the great Videos .

[@OwenWerts]

Hey, a 100 ohm resistor conected to a 9v battery an a standard LED would not make the LED burn out.

[@billzweig8381]

Do resistors waist electricity when they create heat doing what they're supposed to do?

[@EngineeringMindset]

See our video on resistors explained

[@andriusduksta5744]

Wait, did you just use voltage and current interchangeably?

[@angelo0698]

why use excessive voltage in the first place?

[@Swans_And_Ducks]

Does it matter which leg it’s on?

[@ivarnordlkken8082]

No, but on a bigger circuit placement can be a thing.

[@mybluemars]

Unlike a kink in a water hose though, resisters turn electricity to heat. Therefore it can be said that resisters waste electricity.

[@turbogerek]

The water loses momentum though.. and will wear the kink area faster due to more stress (will leak there)

[@Tronzoid]

At 0:07 you say resistors create a drop in current but at 0:32 you say that the resistor creates a voltage drop. Which is it?

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@jwerdy5179]

So how do dimmers preserve energy if the energy is wasted as heat through the resistor?

[@ivarnordlkken8082]

Dimmers use TRIACs not resistors in the main circuit. Or you can use PWM but that's more complicated.

[@EngineeringMindset]

See here kzbin.info/www/bejne/nHOxhmRtr6-fpK8

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@TrueCrimeTelecast]

The video is educative but too brief. How does one determine/calculate the capacity of a resistor should have been included..

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@flashchrome]

Don't we need to know the amp from the battery before chosing a resistor?

[@ivarnordlkken8082]

No.

[@flashchrome]

@@ivarnordlkken8082 that's weird. We don't know and just pick a resistor at random and hope for the beat. So weird.

[@ivarnordlkken8082]

@@flashchrome You don't take a resistor by random. You find the voltage of the battery, and the current the LED needs, and the forward bias voltage of the LED, and that's all you need to calculate the resistor. The battery will deliver any current needed, within limits ofcourse. You should look at his full LED video, it explains it in much more detail.

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@EngineeringMindset]

Seen the new LED explained video? so much detail covered! kzbin.info/www/bejne/hWmwY61ona6Vl8k

[@UrbanArmada]

Could you do a video on the math of building a circuit?

[@EngineeringMindset]

We have lots already, please see our channel or website

[@michael-gary-scott]

Here early! Sorry, I couldn't *resist*

[@RobertParel-l7d]

Use the radio.

[@Sanyal.K]

❤❤❤

[@yechris2001]

Resistors waste energy. Is there a way to build things without using resistors?

[@trollmcclure1884]

How can you limit the current from the grid to a tiny LED bulb then? Common sense tells me that there's very high current able to heat the whole house and couple of tiny resistors should just evaporate. Even a car battery can generate 100A easily. What's going on? IMO the right explanation would be that not all current over a certain value is transformed into heat. It's not clear from the video. Electrons dont lose energy and come less energetic on the other side. There's just less of them able to make it through at one time. The vid is not cooked properly. There has to be much more to tell about resistance

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@EngineeringMindset]

Seen the new LED explained video? so much detail covered! kzbin.info/www/bejne/hWmwY61ona6Vl8k

[@DjAlexincontrol]

Because they couldn’t resist. 😂

[@DesertVox]

That's just 1 use of resistors. There are many others.

[@EngineeringMindset]

Check out NEW resistor video, everything covered! ➡️ kzbin.info/www/bejne/eorGfXl-nLt2pJI

[@uusserrrreesssuuu]

y u still talking about electricity like about a water. didt u see veritasiums video?

[@EngineeringMindset]

Yes I did, it was a very good, detailed and advanced theory of the physics of electricty. But, most people will struggle to understand it. They don't need that level of detail, they need a quick, simplified, relatable and digestible way of understanding it and implementing it within their projects. The water analogy isn't perfect, far from it, but it's easy to understand.

[@mixerD1-]

Comments

[@Mr.Engineer.]

Constructive feedback: Your channel is called The Engineering Mindset, yet your videos cover such basic content that it is more suited for elementary school. When will I see the engineering depth to the topic you are presenting? Thats what is interesting :) Not small quick videos with basic knowledge that almost seems to be there just to generate views and income, then I might consider unsubscribing.

[@EngineeringMindset]

Have a look at our longer videos, they are very indepth. These recent ones are snippet videos to help people find the channel, grow interest in topics from the basics and also answers to their curious questions. They do bring in a lot of views, but they do not generate much income because they are so short.

[@fookoff8660]

You didnt explain WHY theyre added.. lol

[@ivarnordlkken8082]

It's to control the current.