Beginner Electronics - 16 - Clarify & Power / Wattage
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- Опубликовано: 25 апр 2016
- I clarify some common questions and we go over the basics of Power/Wattage!
*DISCLAIMER - READ BEFORE WATCHING*
I am an electronics hobbyist; I do not have a degree in electrical engineering. This series MAY NOT teach all of the appropriate safety required for general electronics work. Any advice taken from this series should be checked with multiple sources, and a professional should be addressed to ensure proper safety.
See my website: codenmore.github.io/
Follow me on Twitter - @CodeNMore - / codenmore
Comment, PM, or Tweet me for help!
Teaching to understand all subjects to the fullest extent! 
Хобби
I am beginning to develope a real interest in Electronics, largely from simplistic explainations on youtube such as this one. Great work and Thank you from Manchester U.K.
Also saying thank you from Manchester!
@@pykedj Thank you from me too, even though Manchester is in a completely different country from me.
Thanks from the 5 hour car trip between Cornwall and London.
mancheser!!!!!
I love this series please don't stop making these videos
It's very nice of you to explain this stuff in a very simple manner and yet be humble enough to accept mistakes and limitations. Keep going.
Love from India
**DISCLAIMER - READ BEFORE WATCHING**
I am an electronics hobbyist; I do not have a degree in electrical engineering. This series MAY NOT teach all of the appropriate safety required for general electronics work. Any advice taken from this series should be checked with multiple sources, and a professional should be addressed to ensure proper safety.
As a viewer commented, the placement of the switch is not just due to convention. It is, in fact, a safety concern based on how many circuits are designed and built. Please keep this in mind.
This video series is the perfect starting point. It was EXACTLY what I was looking for!
Hello! Thank you so much for this wonderful and helpful series! You really have the talent and skill when it comes to explaining things in a simple manner. Thank yoU!!
Wow dude, awesome series, you give sooooo simple explanations, even i can understand. You don't get enough views and likes man. I'm really starting getting into electronics. Keep up the brilliant work, your vids are awesome.
Your videos are excellent, I studied all the way to university but electronics was so poorly taught that I struggled to not get confused. Your videos have truly clarified a lot of issues for me and now I completely understand why we use resistors, the difference between Voltage, Current, Resistance, and Power. The Ohm’s laws make much more sense and the difference between AC and DC. I understand how a breadboard works. I really appreciate your teaching videos please don’t stop teaching they really are helping me in achieving my aims to build a drone and a computer. Thank you so much
It made more sense to me when someone explained it in gaming terms:
Voltage = damage per shot
Amps = rate of fire
Wattage = DPS/DPM
Not a totally perfect analogy but it got me to understand the basic idea
this makes more sense
Voltage = rate of fire
Amps = damage per shot
Wattage = DPS/DPM
What's dpm?
@@yadusolparterre "damage per minute" maybe
@@dieselgeezer18 both could be true and this makes it really confusing😶
@@sp1xa yeah xD
Great to finally see lesson 16 hope you continue to upload. Thank you very much
Your lessons are excellent, I'm a beginner in electronics and learning a lot from your lessons. Those critics if these lesson's are boaring you then start your own feed and let us see how far you get.
So glad you have done an update codenmore. Keep up the quality vids. Best basic electronics tutorials on RUclips!!
Great series! And the fact that you don't do electronics professionally as you say, I find it easily relatable for me compared to my friend's electronics for engineers books.
Hey CodeNMore, absolutely love this series.
The way you explain stuff is so helpful to the newcomer, it really is.
One thing though; stop apologizing for how 'boring' this video has been! We wouldn't be here watching these tutorials if we thought the subject was that boring. I hate it when you say 'I know it's been boring', because in reality it was actually very interesting and taught by a very capable person!
Anyway thanks so much for making these videos honestly... looking forward to seeing how far I can take my electronics knowledge, and you've really helped me start off.
Take care and keep up the good work!
i find it very interesting too. direct to the point unlike most youtubers.
I have always been interested in electric but I never had a chance to learn but now looks like internet giving me change I am very thankful and happy, like very much
how you explaining thank you.
man you dont know how much your tuts have helped me understand electronics keep it up dude thanks
Electron Theory (- to +). Conventional theory (+ to -). Great beginner series!
You my sir are a genius teacher. Incredible detail.
Your videos are very enjoyable and educational to watch keep them coming
Power flows from negative to positive, so in modern wiring all switches disconnect the negative (also called Hot) wire. This is because it's better to have the hot disconnected and staying in a switch, rather than staying in a bulb or other device. this decreases the risk of fires. I had a similar question when learning, and they actually used to wire switches to disconnect the positive, but switched later on. Hope this helps!
Dude.. welcome back.. thanks for the videos..
Its really nice that he puts the adds at the end of the video
In the context of a battery:
Power is the rate of energy release.
In the context of a circuit:
Power is the rate of energy consumption.
Therefore, assuming the circuit is in a series (the voltage does not change throughout the circuit) and the components energy consumption rates do not change, the Power of a circuit is the sum of each components power (or energy) consumption or:
Σ (P1 + P2 … Pn) = Total Power of the Circuit (the total rate of energy consumption of the circuit)
Where P1 is the Power of a component in the circuit and n is the number of components in the circuit that use energy from the power source.
Bro. Just got a job at 16 cause of you. Appreciate it 🙏
Dude, your videos has helped me a lot!
Thank you so much for this videos.
Hope this series get somewhat regular updates, I almost forgot I had subscribed to this channel, since I only watch this series.
+Fernando Santos I'm hoping to do this at the very least once a week now, but then again I've said that before ;(
CodeNMore why did you stop making videos if possible make more
They are different ways of measuring your circuit. The voltage is like the storage of water whereas current is the flow of water through the pipes. Voltage is measures in volts current is measured in amps. The missing factor between reconciling these figures is the resistance in the circuit or the bore of the pipe. So they are like stepping stones to get from one measure to another. V = I x R or [I = V/R or R = V/I]
Just have time to learn this series. Because I wanna teach my kid and I know nothing about electronics. Thank you from Ottawa！
Dude, you have a gift for teaching. Would you consider doing a tutorial on "the math basics of electronics?" [A simple tutorial explaining stuff like multiplying & dividing fractions and decimals. Stuff like that.] Thanks.
This is exactly what I was looking for
you have a gift for teaching. and I dont notice you say the word "too " twice.
Thank you for the great beginners video. 😊
I'm binge watching these.
Energy (what you call Power) is measured in Joules, and is equal to V * I. Power, measured in watts, is the amount of energy used per unit of time. Power = Energy / Time. A 100 watt bulb uses 100 Joules of energy per second.
I think Power = V * I and
energy = V * Q . And as u said power is energy / time
(current = Q/t)
@@aakankshapatil4223 you are correct. I am removing this comment so I don't confuse folks.
The best video on electronics I have ever watched
Thanks for these videos dude!
this is the worlds most interesting channel.
I enjoy your electronics series, but I would be grateful if it would appear on more regular basis.
Great info - thanks!
I got a question that's got me stumped, which side of the led do you place the resistor if physical current flows opposite to conventional current. Being a newbie to electronic logical would lead me to "believe" that placing the resistor before the led would be pointless if current flows the other way or why am I wrong?
I'm just a beginner but I want to do things right. If electrons are in actuality moving FROM the negative terminal and traveling TOWARD the positive terminal should we not ignore convention and place all components like switches, resistors and lights in accordance to this? I guess my question boils down to this. Should the switch come before or after the other components? Should the switch be hit with the electrons first or last? Or does it really matter?
I am thinking about going to school and learn this stuff, so this is a really great series for me to figure out if my interest holds up... and I love it :) thanks for taking your time to make it :)
so lets say I have a bulb that says it takes X amount of watts. how can I know how much resistance to put depending on the voltage I am applying? or how can I figure out whats the forward voltage and amps it uses if it only shows the watts?
Perfectly explain everything thanks alot🎉
Hey man your great teacher, keep up the good work 🙋💪👊
Over what time frame does the LED use the .0768 watts? OR is that the wrong way to think about it?
Great series. One comment on wattage: Wattage is the amount of energy used per unit time, so it's the rate at which energy is being used, not the total amount of energy.
No. You're thinking of watt hours, such as kilowatt hours for home electrical use.
Watts = a measure of electrical power expressed in watts.
i know it's a little bit lame, but i wondering when you will upload a new game programing lesson? i watch some other channels, and those channels are good to, but your lessons about game programing are the best!
Ben Franklin is the reason why we have this problem of conventional current and electron current.
this is 8 years later but its important to note that watts is joules per second, energy per unit time. it is not just energy otherwise itd be measured in joules. The amount of energy a component uses is dependent on time and the power it consumes. to find energy you would do, energy=power*time
...Is it possible to stack resistors if I don't want to buy more resistors?
like I need a 200 homs resistors but I already have 2 100 oms resistors, can I stack them?
Oh and I'm not a native english sorry for bad spelling and grammar errors
hi from France
I love your video but since you mentioned safety, I think there are needed to be some warnings about what voltage power source are considered “high voltage ” and would be terribly dangerous. If I put 1000omg resistor there and cut my old computer power cable, plug cut side in the beadbord and plug side plug into the wall, the led should work perfectly right? 😂😂
If the current is flowing from negative to positive...shouldn't the resistor be connected before the led. To avoid damage to led...cause I can see 9v passing through the led then cutting down by resistor...to complete circuit...pls explain?
Another reason to use Conventional theory is for easy math. With the (-) to (+) flow and electrons having a (-) charge, most of the math would be [ x-(-y) ] which is the same as [ x+y ].
Great work in this video too! However, let me clarify that wattage expresses the amount of energy consumed by an electronic device in a certain time. For example, a 100 watt lamp, is going to consume 100 joules (energy unit) every one second.
very helpful for me thank you for this video
Each resistor has a voltage rating and a resistor value. If we know the current (I=V/R) we can find the power consumed by the resistor: P = I^2 R.
Both of you are right.. Electricity flows in the opposite direction to the flow of electrons
Conventional electricity shows the path a positive charge will follow, which is from a positive voltage to the lower voltage. However, electrons are negatively charged particles, so they move the opposite direction (from negative to positive).
In case anyone wonders where could you get positive charges that would follow the conventional path, ionized gas particles is one choice.
Hi,
I loved your video. The I have ever watched.
Please upload video of Embedded programming
Please..!
thank you for this.
You are back
I didn't understand how u connected battery to what terminals & to potentiator
suppose i have 10V coming from a wire with zero resistance which in turn gets divided into two other wires how does the current and voltage get distributed?
please help
no it affects the ampreg volts are the size of the pipe and amps are the water going through it OK =)
Nick Fury The amperage will get divided between the two wires, but if you use more current than the source can provide, the voltage will also drop
Im alittle late to the party, but it depends, if both paths have the same resistance, then the current will stay the same, but if one has more than the other, that one will get less current than the wire of less resistance.
So the resistor is taking 140mW. Cuz P=I*V then P=0.024*5.8=0.1392W
If the resistor is 1/4 watts or 250mW then it's operating with more than half of its capacity.
If this resistor were 1/8 watts or 125mW, would it fry?
current flows in the opposite direction of the electron flow.
Where would one acquire a 1.1Gigawatt resistor? Asking for a friend
Its vital that you adhere to the flow of the schematic. If your schematic has a led with its positive lead connecting to vc and negative to ground, that LED will work.
However, if you make the assumption that because electrons flow from negative to positive you must connect everything backwards, you will never have a functioning circuit.
Your videos are not boring fyi lol very informative
if electricity flows from negative to positive and the resistor on the positive end of the led wouldn't the resistor be useless because its getting full 9v (if the power supply is 9v)
I believe so
Is watts measured how much energy is being used per second? To make it Watts per hour, do I just multiply by 3600?
If you want Watt-hours, you must multiply the number of Watts by the number of hours. For example, a 10W device turned on for 24 hours equals 240 Watt-hours, which is 0.24 kWh.
Please note that we're talking about Watt-hours, not Watts *per* hour. It's a multiplication, not a division.
Can you get 1.21 Gigawatt resistors?
for wattage of a resistor P= I(squared) times resisitance. or if voltate across resistor is known. P= V(squared) divided by resistance. hoper this helps. note this is for dc only
and power through whole circuit is just p = I x V
also electricity is the movement of charge not just electrons
Power (watts) consumption measured per hour. Just to add as I was not sure about timeframe those amount of watts will be consumed from my battery :)
When electricity was first studied, they assumed electrons travelled backwards, from the + to the -. Can you imagine if they had got it right way back then? Today, we would speak of plain-old electrons as having a 'positive' charge. It would've changed much of the physical model we use to describe the universe.
he's alive
so 5v battery with 5000mah(5ah) will have 25wh?
I am a indian i hadn't found a RUclips tutorial as you thanks man
.....
How do you like the commercial, " Take a Look at this!" Snap finger, LOL, LVL, LOL!!!
Whats the point of having double terms for everything ? I mean since power and watts are the same numeral unit why make the distinction ?
i am also wondering this...
Resistors should be close to positive or negative terminal of the circuit?
doesn't really matter, it could be anywhere (just be careful with paraller circuit, there it's important in which wire the resistor is)
@@AceofSpades-mx4dx Thanks
So if the power flows from negative to positive, why is it that car batteries always have the positive terminal protected and not the negative terminal? And if you you bridge the positive terminal to the side of the car there are big sparks, but if you bridge the negative terminal to the side of the car nothing happens. I am a bit confused there.
Why don't you answer the questions people ask you? If you make videos to help people then you must also answer their questions, it is all part of the process.
?????
why the hell there are so less views????
we viewers must support such people (for me an 👼)
Nice video but I think the distinction between power and energy should be clarified, the video sometimes mixes the two:
Power is measured in Watts. One Watt equals one Joule per second: it's a *rate* of energy consumption or production.
Energy is measured in Watt-hours (or in Joules). Be careful: this is a number of Watts *multiplied* (not divided) by the number of hours. It's Watt-hours, not Watts *per* hour.
For example, a 10W device that runs for 48 hours consumes 480 Watt-hours, which is 0.48 kilowatt-hours (kWh).
Since 1 Watt = 1 Joule / second, and there are 3600 seconds per hour, 1 Watt-hour = 3600 Joules.
Hope this helps.
A positive charge has more protons (+) than electrons (-). A negative charge has more electrons (-) than protons (+). So in order for the electrons to move, since a negative charge has a spare number of electrons, they move towards a positive charge which has less electrons. so electriciy flows from negative to positive. A neutral charge which it has the same number of protons and electrons, is usually the insulator, because electrons don't need to move in it.
so would the power rating be the same as the resistance?
Power = V x I whereas Resistance = V / I if that has confused you remember V I & R are all related with Ohms law: V = I x R. This lesson added the concept of Power being = V x I which uses the two same variables but in a different way.
The electrons flow from the negative terminal to the positive terminal. However the current direction flows opposite the electrons, so from positive to negative. @codeNMore
Current is the same as electrons
Don't eat PIE with your EIRs. 😊 P=IE, E=IR
Wow, the best way to keep those in check. Thanks for sharing.
Battery symbol is wrong. Seem to have 2 pcs of battery in series.
Question answered!
So is that a 0.0768 Watt LED?
How many times have people been told by their parents to not stick things into the wall outlet?
I am a complete novice, if the flow of electrons are moving from negative sign to positive sign why is the resistor on the left side?
I had this same question too. Apparently, whether you are using the conventional current model (positive to negative) or the more accurate electron current model (negative to positive), both involve movement. The directional orientation of the current does not matter, rather its scalar quantity does. In short, electrons are frustratingly messy and work in really weird ways that defies ordinary logic, and the presence of a resistor in a circuit absorbs voltage wherever it is placed.
I am still grappling with this too, but here are some videos to watch that might give you some clarity on the matter:
Reddit Thread on this same question - www.reddit.com/r/explainlikeimfive/comments/5kshcq/eli5_in_a_series_circuit_why_does_the_position_of/
FAQ w/ Electrical Engineer - ruclips.net/video/zWC_AiycHbo/видео.html#:~:text=If%20the%20LED%20gets%20too,a%20resistor%20to%20protect%20it.
@@aaronnikels5706 Thank you!! I will definitely need some active learning to continue on this path.
I couldn't understand the difference between amp and ⚡ voltage
If electrons flow from negative to positive, then it would be safer to have the switch closer to the negative node so as to prevent unnecessary flow through your components. Think power surge.
Once the switch is up, the circuit is open and electrons automatically stop flowing through any part of the circuit. So, it doesn't really matter where you place the switch. At least according to the basic theory it doesn't.
keep it up!
Thank millions You help all people’s . I love electronic but I am zero education lol
Watts, the best Blacksmith ever.
#SecretOfMana
With respects to conventional flow vs real flow, I like to usually point out how this is one of those cases where human perspective and bias confuses the science.
We tend to have views on things because not the world around us. Light tends to be white and dark tends to be black. In the light, you can see a lot, so you tend to be calm. In the dark your Vision is restricted or nullified, so we tend to be anxious or scared. So history denotes white with good and black with bad.
Same goes for positive and negative. We have five apples, were happy. We have positive 5 apples. Someone eats out 5 apples, were sad or angry, we have negative 5 apples.
In the world of commerce, or even just out basic financial life, have more is usually considered better. So positive became related to having more or being bigger.
Thus enters the Proton and Electron. Any wonder the Proton was designated with positive charge, as it's mass is larger. Any wonder we would initially think the power came from the positive side? The bigger the person, the more force they can apply. Yet, in the end electrical force came from negative electrons building up and flowing.
So, which is more positive? The Proton for its size or electrical flow. I guess the Proton won keeping the title of being positive and electronics diagrams mask this by continuing to pretend power flows from positive.
It's kind of a good teaching tool when you start looking into quantum physics though. So much in that is confused language, because so much of it is so foreign to our existence. You here about Up and Down quarks and the word up and down have so many meanings that simply don't transfer over to quarks. Mainly, their only purpose is to show that they are related by being opposite from each other while being distinctly different from other types of Quarks. Same thing when they say a quark has a spin. You bend your head around trying to thing about this thing actually spinning when it's mainly a word that relays how different that attribute it has is from other attributes. Were physical beings whose entire perspective is based on all our learned experiences in a physical world. We can't help but try to explain things that aren't even physical in physical terms. Yes, they have an effect, but at their fundamental, all matter is basically like a magnetic field. They're just forces anchored to a specific point in spacetime. Yet we can't help but view them as little balls bouncing around.
Sorry for the tangent, but it's all interesting to me how we paint the universe in the brush of our past experiences.
Ohms law is not stated correctly. What I was taught in electronics class was that voltage is designated with an "E", standing for electromotive force (EMF) and therefore ohms law is correctly stated as E / I x R
This is a beginners course you know.
ok so my dad who is an engineer of 30 years, all his friends who are electricians, all my engineer profs, every single google source and textbook are wrong. good to know. thanks!
THank you