How to use a Resistor - Basic electronics engineering
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Date: 2023-11-17
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Comments and reviews: 22
Sander
Hi there. I have a small question about resistors. Im trying to fix something and therefore I need to add more resistors in the circuit as the ones there are in a now turn black and get really hot. Ive asked a friend and he suggested to add 4 0, 25W 10K resistors, but I dont have enough space for that. Im not a very technical person so I dont know much about it so therefore I reached out to you. Is there a way I can add 1 bigger resistor with a different value in this circuit instead of adding the 4 ones i got suggested? I would also like to know what value I would need. Im looking forward hearing from you. Greetings from the Netherlands! Sander
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Hi there. I have a small question about resistors. Im trying to fix something and therefore I need to add more resistors in the circuit as the ones there are in a now turn black and get really hot. Ive asked a friend and he suggested to add 4 0, 25W 10K resistors, but I dont have enough space for that. Im not a very technical person so I dont know much about it so therefore I reached out to you. Is there a way I can add 1 bigger resistor with a different value in this circuit instead of adding the 4 ones i got suggested? I would also like to know what value I would need. Im looking forward hearing from you. Greetings from the Netherlands! Sander
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flagmichael
In all the hoopla surrounding solid state electronics in the last half of the last century, an important change went un-noticed: carbon composition resistors (those old things with perfectly cylindrical bodies) were displaced by metallic film resistors. Carbon resistors were primitive things - not very different from pieces of pencil lead. They were hard to make with much precision and were unstable. In low power applications the resistance gradually rose; in higher power applications the resistance fell. They also had an inherent negative temperature coefficient. Those were the bad old days of electronics.
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In all the hoopla surrounding solid state electronics in the last half of the last century, an important change went un-noticed: carbon composition resistors (those old things with perfectly cylindrical bodies) were displaced by metallic film resistors. Carbon resistors were primitive things - not very different from pieces of pencil lead. They were hard to make with much precision and were unstable. In low power applications the resistance gradually rose; in higher power applications the resistance fell. They also had an inherent negative temperature coefficient. Those were the bad old days of electronics.
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Prime
Can someone explain the science on why the resistance decreases when placing the resistors in parallel as seen at 0: 35? My brain just cant compute on that one. I get how the resistance increases when placing the resistors into series because the flow has to pass though each resistor on its way down the chain. But the inverse effect is rocket science to grasp to my mush.
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Can someone explain the science on why the resistance decreases when placing the resistors in parallel as seen at 0: 35? My brain just cant compute on that one. I get how the resistance increases when placing the resistors into series because the flow has to pass though each resistor on its way down the chain. But the inverse effect is rocket science to grasp to my mush.
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Ravenclaw
Resister come (normally) in standard values. The smaller the tolerance the more values.
At 20% the values are:
10 15 22 33 47 68
At 10% the values are:
10 12 15 18 22 27 33 39 47 56 68 82
At 5% the values are:
10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91
The 20% values are the easiest to find.
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Resister come (normally) in standard values. The smaller the tolerance the more values.
At 20% the values are:
10 15 22 33 47 68
At 10% the values are:
10 12 15 18 22 27 33 39 47 56 68 82
At 5% the values are:
10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91
The 20% values are the easiest to find.
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FALCON
Easiest way to remember the resistor chart is by remembering this line:
mr BB ROY Goes to Bombay Via Great Wall for Silver and Gold.
Here,
BB for Black and Brown
ROY for Red, Orange and Yellow
Goes G for Green
Bombay's B for Blue
Via's V for Violet
Great's G for Grey
Wall's W for White
And Silver and Gold
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Easiest way to remember the resistor chart is by remembering this line:
mr BB ROY Goes to Bombay Via Great Wall for Silver and Gold.
Here,
BB for Black and Brown
ROY for Red, Orange and Yellow
Goes G for Green
Bombay's B for Blue
Via's V for Violet
Great's G for Grey
Wall's W for White
And Silver and Gold
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duck
Not what i was looking for but still learned something.
I want to know what a resistor is. How it works and how to make one. How do we measure its tolerance and resistance? And what happens to the motion of the current and the magnetic field of the circuit when a resistor is added to the circuit in series/parallel.
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Not what i was looking for but still learned something.
I want to know what a resistor is. How it works and how to make one. How do we measure its tolerance and resistance? And what happens to the motion of the current and the magnetic field of the circuit when a resistor is added to the circuit in series/parallel.
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education
Do you I know that some cars wiring going to that ignition side of the coil have resistor to limited eletrons on the wire and get less energy on the coil = less power to spark and more fuel need to make of the horsepower that need to go, if remove that more miles per gallon on the go.
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Do you I know that some cars wiring going to that ignition side of the coil have resistor to limited eletrons on the wire and get less energy on the coil = less power to spark and more fuel need to make of the horsepower that need to go, if remove that more miles per gallon on the go.
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American
I learned all of this one I was getting into Electronics I took a correspondence course at a Washington DC. I work for a big Communications company went on to become one of that top engineers in digital fiber and fiber-optic switching but this is a good Refresher
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I learned all of this one I was getting into Electronics I took a correspondence course at a Washington DC. I work for a big Communications company went on to become one of that top engineers in digital fiber and fiber-optic switching but this is a good Refresher
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Moshe
Problem with calculating the OHMs of a resistor, is that I never know which side to start from (left or right, I s beard for example look for the larger gaps, or look for the thick color, but usually I don't see either.
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Problem with calculating the OHMs of a resistor, is that I never know which side to start from (left or right, I s beard for example look for the larger gaps, or look for the thick color, but usually I don't see either.
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yo
NONE of these videos cover this topic properly. I cannot find a single video where this colour band makes sense.
Black, green, silver, gold, black. NOTHING comes close to the real value I'm STUCK
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NONE of these videos cover this topic properly. I cannot find a single video where this colour band makes sense.
Black, green, silver, gold, black. NOTHING comes close to the real value I'm STUCK
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Laurence
If 5 color band resistor, where to start reading the first 3 digit number. I'm still wonder until today. I always read wrong because I test it with DMM after I'm done reading the color band.
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If 5 color band resistor, where to start reading the first 3 digit number. I'm still wonder until today. I always read wrong because I test it with DMM after I'm done reading the color band.
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godison
Paul Electronics, I will buy you at least a cup of coffee, for not just sharing your rich knowledge, but also in a way that even a newbie can simply get it digested, Thank you.
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Paul Electronics, I will buy you at least a cup of coffee, for not just sharing your rich knowledge, but also in a way that even a newbie can simply get it digested, Thank you.
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The
I always have a problem seeing the colors.
Red, Brown, Orange, Gold and sometimes the Black -- all look the same to me: (
So, I just use my multimeter and read them instead.
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I always have a problem seeing the colors.
Red, Brown, Orange, Gold and sometimes the Black -- all look the same to me: (
So, I just use my multimeter and read them instead.
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jhon
if i had this when i was studying, I would've passed Circuits 1 on the first take. Please continue to make these videos, this will help incoming engineering students in the future
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if i had this when i was studying, I would've passed Circuits 1 on the first take. Please continue to make these videos, this will help incoming engineering students in the future
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gazqwerty1
27 seconds example for 200ohm thers 50 50 100 wouldnt it be better 100 50 50 let the first one take the toll? Serious q's or does it really not matter
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27 seconds example for 200ohm thers 50 50 100 wouldnt it be better 100 50 50 let the first one take the toll? Serious q's or does it really not matter
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Battal
I'm watching this so I can understand logic gates better, and one day, make a homemade computer, even if its the size of a room.
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I'm watching this so I can understand logic gates better, and one day, make a homemade computer, even if its the size of a room.
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l337pwnage
I once gave one to a police officer, but then I got charged with resisting. :(
. but at least it was a reduced charge. :)
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I once gave one to a police officer, but then I got charged with resisting. :(
. but at least it was a reduced charge. :)
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Ratchet
Dude your videos are exactly what i needed as im getting into electronics and arduino stuff so very much thank you kind Sir
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Dude your videos are exactly what i needed as im getting into electronics and arduino stuff so very much thank you kind Sir
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Robertson
how to control a 127v input so that at the end it only outputs 12v? is there an explanation in video for this situation?
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how to control a 127v input so that at the end it only outputs 12v? is there an explanation in video for this situation?
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Darren
This is awesome. But what if you flip the resistor and read the bands the wrong way? Does orientation matter?
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This is awesome. But what if you flip the resistor and read the bands the wrong way? Does orientation matter?
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Reaper
So. why don't they just print the Resistance Value on the Resistor instead of all this colour nonsense?
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So. why don't they just print the Resistance Value on the Resistor instead of all this colour nonsense?
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CHRIS
I was enjoying watching your video and now l do understand some steps through resistors. keep it going
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I was enjoying watching your video and now l do understand some steps through resistors. keep it going
reply
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