Basic Electronics For Beginners
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- čas přidán 19. 06. 2024
- This video provides an introduction into basic electronics for beginners. It covers topics such as series and parallel circuits, ohm's law, light emitting diodes, resistors, potentiometers, voltage divider circuits and more.
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Good teacher. His explanations are easy to understand. Today I am 72 years old and a Happy retired worker. It’s the first time that I have at last understood the basics of Electronics! Thanks to you, professor.🙏
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What was your field of work?
Electronics are really fun and interesting and they are more accessible than ever! I don't know if it's your plan, but spending retirement tinkering with machinery seems like a great idea.
This was a very good tutorial. I thought the instructor did a wonderful job walking the viewers through the use of resistors. He had great examples, explained things well with pertinent illustrations. And he had a very good voice for instructing.
I love the way you explain everything. ive always worked on computers and main boards, but its nice knowing whats going on at the physics level. thanks for the video.
Execelent!
Wow what incredible timing! I just got a beginners electronics assembly kit from my girlfriend for Christmas to give me a head start before my engineering classes start soon. This will definitely be helpful
I'm trying to learn how to circut bend, but first need to learn the basics of electronics. Thanks for the tutorial, you're a good teacher.
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You mean circuit bent?
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Thank you for sharing a simple guide for electronics basics you are truly awesome and wonderful ^^
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An important point for anyone not understanding the fundamental "what actually *is* voltage/current":
A rough concept to consider is how electricity is being transmitted.
Electrons loosely speaking are responsible for electricity.
A coulomb is a measure of electrical charge.
A couloumb represents a number of electrons, regardless of their state. This is charge. The number isn't immediately important. It's a big number.
Electrons aren't "consumed"; they have a level of energy at which they've been excited, and transmit this energy to power things.
Energy is measured in Joules. The same joules in any other form of measurement of energy, e.g. chemical energy.
So if each electron is holding a certain number of joules, and a multitude of electrons make up a coulomb, we can state how much energy is contained in this collection of electrons as the number of Joules per Coulomb. "Joules per coulomb" is the same as "Volts".
V = J/C = Joules per Coulomb.
Current is the "rate of flow of charge".
As previously mentioned, charge is measured in coulombs. It gives the number of coulombs passing a point per in a circuit per second, regardless of how many joules possesed by those coulombs.
I = C/s = coulombs per second.
So with this in mind, power (Joules per second, measured in Watts), can be found by muliplying the two measurements together.
The fractions cancel out:
J/C x C/s = J/s = Watts!
This explains why voltage goes down across a component, e.g. lightbulb, as Joules are being taken from the electrons/coulombs and are being converted to light!
So the same electron can "carry" a different amount of Joules with it? There must be an interval for the amount of Joules an electron can carry right? How do I find that? And what exactly is the Joules of an electron? Is it its kinetic energy?
@@ElVerdaderoAbejorro Joules of electrons is actually is the energy possessed by then when electric field is applied to them to move in ordered manner rather than random drifting which is without application of external voltage.
• Random motion of electrons - Thermal energy. (Joules of Heat)
• Ordered motion of electrons - Electrical energy. (Joules of electricity).
@@ElVerdaderoAbejorro
1. There is no such thing like the intervals of energy carrying. As long as these electrons are in motion then either in random or ordered they carries possessed energy at any instant.
2. When there is no external voltage then only the thermal energy they can carry. In this condition if any temperature difference is imposed then heat transfer will takes place in metals.
3. When electric voltage or field is imposed then they moves in ordered fashion as long as there is no resistance in the conducting path they continues to possess the electrical energy.
4. The only one state microscopically exist when these electrons are ceased to motion or motionless I.e. absolute zero Kelvin condition. Then only they don't carry or possess any energy at all.
5. So, there is always some form of energy these electrons possess at any instant of time in the metal or conducting material. There is no any particular interval needs to take into account. But yes, if we want the energy transferred in that period of time (range of instants) then it is V*I*∆t or I^2 *R* ∆t. At every instant, electron is in balanced condition of energy transaction.
Great comment thank you
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Thanks. Very clear teaching. You have improved my understanding greatly
0:06 Resistors Intro and Ohm's Law
2:28 Power
5:04 Resistors in Series versus Resistors in Parallel
9:41 Lightbulbs
11:16 LEDs
15:02 Potentiometers
23:19 Voltage Dividers
29:26 Solar Cells
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Awesome video it gives me a basic fundamentals on how electronics circuits work.
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This was an extremely helpful video. Thank you so much
Amazing video, thanks for really breaking this down. I had to do this 20 years ago for Télécommunications and it's amazing how much I forgot lol.
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Outstanding basics...Good also for refresher
Very nicely explained, very gentle, simple and easy to understand. Thank you dear.
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Thanks for this video, I learned more and understand the concept of electronics
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Excellent Explanation Sir. Thank you
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Excellent, Thank you.
yes finally, i hope you will get to more advanced electronics.
This video made me finally have that oh shit I’m an idiot moment, that very moment everything clicks!!! Thank you so much! Seriously thank you, I’ve been staring at my Arduino sensors just with mass confusion!! Resistance was the one thing I couldn’t understand. Finally clicked when you pretty much said, resistance is a gate, we only need 2 people to work, resistance opens the gate for two workers, and shuts it to 1000 people trying to also get in!
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In a parrallel circuit, there is a different wat to calculate it if you are not good with fractions. The formula is r1 x r2/r1+r2. If there are multiple resistors then the answer from the first 2 resistors turns into Re. therefor the formal now becomes RexR3/Re + R3 and so on.
Just found your electronic series and I really like them. New to this subject. Is there an order that you recommend to watch these?
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I learned the product-over-sum rule for pairs of parallel resistors. ie R1*R2/(R1 + R2). Sometimes it's easier to work out by hand.
It's less nice for 3 or more parallel resistors, but it still works as long as you only do two at a time, and calculated pairs you can think of as its own resistor.
For instance: with 3 resistors in parallel, you can do R1,2 = R1*R2/(R1 + R2) and R1,2,3 = R1,2*R3/(R1,2 + R3)
With 4 resistors in parallel, you can do R3,4 = R3*R4/(R3 + R4) and R1,2,3,4 = R1,2*R3,4/(R1,2 + R3,4)
Etc.
Like I used to tell my math students, sometimes it isn't a "more right" way or a "superior" way, just another tool that sometimes is a better fit to your problem.
This video took me back 63 years, when I started a one-year electronics course , at university, here in England.
love to hear it.
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thank you so much dude! revising for a promotion at work!.. forgot so much of this..
Awesome Electronics Tutorial: V=IR - P=VI - Green LED = 2 Vdc drop across it - total R in series - total R in parallel - Well illustrated Potentiometer explanation i will add that the C terminal is also called the variable WIPER. Conventional current vs Electron current [got it] You are a Rock Star my friend
:)
It’s better to have them in volts, amps and ohms and Watts, volts and amps if you’re addressing beginners. Much easier to grasp.
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Yes
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Hi
@@dreamlyrics12 yes
Memory effect exists in resistors, too. A 000 smd resistor resists, after several use, it will become fully conductive. Smart batteries have such resistors inside the battery pack.
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発音が聞こえやすい
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Welcome back legend
First
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