Thank u prof. Years back I travel 30km to where school was to do this topic and while my friend seem to get it well, I only got it partly. Not too late yet now.
That is a very special glass you have for teaching. I am studying for entrance exams for electrical and multi skill opportunities. I did these classes in the Navy Nuclear power program 30 years ago. Thank you for the Algebra update and a class well taught.
Nicely done. I've been in Physics since undergrad days (early 70s) and ham radio since the 60s. I still enjoy a lucid, well organized review of problems. I also teach elementary electronics for our prospective ham radio licensees. We do class work like you did here then go to the lab for hands-on application. I love the Learning Glass. I've just discovered the LearningBoard and have watched the webinars. Very nice teaching tool! Gotta figure out how to get one, but I don't have much budget. Retired, doing all this on a volunteer basis. Now if you need a beta tester for the newest model... :-). 73 de WA8YCD
Bob West. I am Ka3jnu and I am studying for my Extra Class and was watching this video and saw your post. You worked my husband Wa3tvh on 11/1/2021 for POTA. Sounds like you run some nice classes.
Current in a capacitor does not flow through it, charge pushes and pulls across it(like an inductor), that's why current moves at the capacitor at the moment in a battery circuit when its turned on or off....this always seems to me critical information that is left out. Thank you for being clear about this.
Hi everyone, thanks for you your interest! No, I'm not writing backwards. The secret is given here: ruclips.net/video/CWHMtSNKxYA/видео.html Cheers, Dr. A
hi just wondering i got taught a different symbol for a resistor it was more like a box which one is correct. Another question when do you do live streams?
DR Anderson I have to tell you that I admire your job, I've understood and practiced everything I was supposed to learn in two weeks,thanks you, regards from colombia.
Does anyone else think this guy looks like Benedict Cumberbatch's twin brother? Except instead of Doctor Strange, he's actually... Doctor A? No?.. Well anyway thanks for the video! Crystal clear now.
Hi, in relation to the last section (the exercise at the end of the vid) i have a similar problem which has 3 batteries and 3 resistors (3 loops in total), i have the values for the batteries but not the resistors, i am supposed to find the voltage of one resistor. and do not know where to start to tackle this problem. Can you help?
+Terry T You'll have to use Kirchoff's rules, just with three loops instead of two. Rules: 1) Voltage drops around any closed loop is zero. 2) Currents don't pile up at intersections. Good luck, Dr. A
... your'e a legend Matt. You have empathy for those of use that never qualified to do calculus at school but are not stupid. Do you have any tuts. where you explain the elements and applications of the differentail and integral calculus ... your way ? :-)
at time 57:37 of the video, I1=I2+I3 and that's why there was a little bit error in the value for I3 that should be 0.15A instead of -0.15A. THANKS FOR THE VIDEO
I think i saved a liion lithium battery that was over charged 5v instead of 4.2 its a 3.7.. I just charged it at like 2.3 and when intead of waiting till it reaches 4.2 i just waited till it bropped to 4.2...was thinking is if equal balancing same length of power equals same power. Also was controlling the volt with a pwm controlled for a motor. The controller changes slightly when using multi-meter and was strange as you mentioned how resistance is how electronics function so it was changing pwm output when re measuring. I used a motor that used same amount of power as controller to set the mark on the dial. Hope this is making sense to someone and helps make more sense.
So if I have a schematic all I have to do is find equivalent resistance? What about the other components? Do I just ignorthem? I'm mean like transistors, opamp, ic.
321reh, Remember that I3 is related to I1 and I2 through the equation shown in the video: I2 = I1 + I3. So if you just keep it as I3 through the 64 ohm resistor, you could equivalently write that as I2 - I1 through the 64 ohm resistor. Hope this helps. Thanks for watching and asking. Cheers, Dr. A
Thank You For Your Explanation!!! I Took This Subject 40 Years Ago And I Forgot Some Key Facts!!! A Very Good Explanation You Have Here DR.A!!!!( And A Great Video Too!!!)
Hi Matt. On the problem, how did you determine the direction of the current in the middle path without doing any calculations yet? I am sure it's obvious and I am just missing it... Thank you!
athantas, Great question. Current sources tend to have constant current (varying the voltage), whereas voltage sources tend to have constant voltage (varying the current). Most devices like batteries or wall power act like a voltage source. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
Ham, Great question! You don't really know initially, but if you're consistent with applying the rules, it doesn't matter. You can pick either direction, and if you chose the wrong direction, you will end up with a minus sign. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
Fair point. We know that it's electrons that are moving. So when they move away from one side of the capacitor, they leave behind some unpaired positive charge. Cheers, Dr. A
At 42:40, how did he know that I3 was going to go down? It seems to me like if we look at the 58V battery, the current should be flowing from that into the 64Ω resistor, which would make it going up instead.
It doesn't really matter from which battery you decide to flow the current as long as you use kirchoffs correctly. Its just that calculations are easier if you choose the one with higher potential difference
on a solar charger I made if you measure the voltage after the diode while the circuit is open there is 0 voltage drop. once you put a load on the circuit the voltage drop is 0.2-0.3v. is there a reason for this?
+micheals1992 I would need to see the circuit diagram and where you are measuring the voltage. But basically remember that since V=IR, if there is current and resistance, there is a voltage drop. When the current is off, there is no voltage drop. When the current is on, there can be a voltage drop - including in the wires themselves since wires still have some small resistance. (Diodes themselves have a built in voltage drop, but this is usually closer to 0.8V.) Thanks for the question! Hope you're enjoying physics. Cheers, Dr. A
Matt Anderson It's a Schottky diode which is why the v drop is low (multimeter says 0.2v in >l mode). it's a pretty basic circuit and the diode is only to prevent discharge during the night. I recently got a multi meter and I decided to make a solar AA/AAA battery charger while playing around with some parts I had and I found it interesting that the diode only had a v drop when a battery was connected. I'm also making a DIY Velocycle and wanted to make an indicator system and a central power system for all the lights etc which is why I'm trying to learn a bit about electronics before the summer comes and I finish my project for this years bike show. thanks anyway! :)
***** Good detective work! Sound like you're having fun. Of course a diode sitting by itself should not have a voltage drop, since that would mean it could move charge, acting as a battery. And we can't just extract energy from nothing. And by the way, electronics is a blast! Cheers, Dr. A
Matt Anderson is there any better way to do this circuit? postimg.org/image/jo0qomh6d/ Open circuit/indicator switch in central position - postimg.org/image/cyu78lvud/ it says the load is 711uA on this which is around .002W but maybe the program i'm using isn't entirely accurate. I'll probably put an isolation switch on the battery for when it's not being used.
Siempre vengo por el titulo en busca de algo ...Lamentablemente nunca lo encuentro. Estoy buscando los problemas relacionados a capacitores y resistencia en paralelo usando un diodo rectificador y una fuente de corriente AC. No hay nada.
The video isn't mirrored. He just stands behind a special glass and writing on that glass like usual. People on the other side of the glass can also see the writings on the professor's view. It's just a special glass.
Zuber, Excellent point! You are indeed correct that for ideal circuit elements with R=0, the time constant τ = RC = 0. The capacitor would charge up (or discharge) infinitely fast. Of course, this is only the case when all R=0 in the circuit, including the wires and the voltage source. Any real wire (not superconductor) has some finite R, and any voltage source (like a battery) has some internal R. Thanks for the comment and keeping me honest! Cheers, Dr. A
The video isn't mirrored. He just stands behind a special glass and writing on that glass like usual. People on the other side of the glass can also see the writings on the professor's view. It's just a special glass.
About 10 nos of transparent Self adhesive sheets laminated to this crystal board, one over the other, can reduce the labor and time required to erasing the board.
If I have to do this kind of a presentation, perhaps I would have a stensil (a preprinted matter, in mirror image, of the text, I may have to write, with some mechanism to turn it over, as and when required. ) at the camera man's end.
Thanks. At times, my( google indebted) mind tries to read too much in to the things. Usually, that amounts to having two holes in the door, for a cat and a kitten.
I’m trying to figure out the board he is presenting the lessons on... he’s on one side, the live audience is on the other side... how is what they see not a reversed image ? I understand software could reverse it for RUclips viewers.
MOST BENEFICIAL IN REAL LIFE IF YOU EXPLAINED HOW AND WHY WE USE CAPACITORS!! AND WHY WE USE THEM COMPARED TO RESISTORS!! AND: WHAT DOES IT MEAN: (FARAD) AND WHAT IS IT EQUIVALENT TO VOLTAGES OR CURRENT....ETC!! WHY WE USE CAPACITORS IN REAL LIFE AND FOR WHAT? WHAT'S THE BENEFITS IN REAL LIFE APPLICATIONS? please if you explain the basics first and what does it mean and difference between current and Amperage and energy and watts......etc= if you do (on youtube) as i noted above, it will be too far beneficial to common (lay people) readers; so to benefit them in real life. The concepts you been teaching are so technical to lay people; Unless you only targeting those from all population who have experience in Electricity subject!!! Anyway: you look very rich in knowledge in this Area but too technical!! = cheers buddy !
eden, Lots of questions that I probably can't answer here. But thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
I just learned 35% of my semester from a simple 1hr RUclips video. You sir are epic!
What really? We had this in 2 classes in Austria, I wish it was easier tho!
Its called not paying attention in class lmao
@@siddarth1346 it's hard to pay attention sometimes when the professor is 1 inch tall from your seat.
I've never seen anyone write backwards with such fluidity, what a skill!
Sorry, just a normal human:
ruclips.net/video/CWHMtSNKxYA/видео.html
Cheers,
Dr. A
Thank u prof. Years back I travel 30km to where school was to do this topic and while my friend seem to get it well, I only got it partly. Not too late yet now.
Such a clean, instructive presentation! Thanks a lot for making things so easy to comprehend
I just got an A in my Physics 2 class, Spring 2018. I've watched this channel for lots of help. Thanks prof. Anderson.
That is awesome. Congratulations.
Cheers,
Dr. A
So awesome that you post these lectures online, very clean presentation.
+Jason schmidt
Thanks Jason! And I love your profile pic. Awesome.
Cheers,
Dr. A
That is a very special glass you have for teaching. I am studying for entrance exams for electrical and multi skill opportunities. I did these classes in the Navy Nuclear power program 30 years ago. Thank you for the Algebra update and a class well taught.
onefixitman,
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Nicely done. I've been in Physics since undergrad days (early 70s) and ham radio since the 60s. I still enjoy a lucid, well organized review of problems. I also teach elementary electronics for our prospective ham radio licensees. We do class work like you did here then go to the lab for hands-on application.
I love the Learning Glass. I've just discovered the LearningBoard and have watched the webinars.
Very nice teaching tool! Gotta figure out how to get one, but I don't have much budget. Retired, doing all this on a volunteer basis. Now if you need a beta tester for the newest model... :-). 73 de WA8YCD
Bob West. I am Ka3jnu and I am studying for my Extra Class and was watching this video and saw your post. You worked my husband Wa3tvh on 11/1/2021 for POTA. Sounds like you run some nice classes.
love your lectures, so interesting. I wish back in those years in my university, you were my professor.
You are truly doing God's work. I can't thank you enough for your videos!
Great lecture, it help me a lot. Hope you would upload more videos from the 2nd semester of physics.
Current in a capacitor does not flow through it, charge pushes and pulls across it(like an inductor), that's why current moves at the capacitor at the moment in a battery circuit when its turned on or off....this always seems to me critical information that is left out. Thank you for being clear about this.
Outstanding presentation Matt. Thank you.
Michael Lybarger,
You're very welcome. Glad you're enjoying the videos.
You might also like my new site: www.universityphysics.education
Cheers,
Dr. A
Hi everyone, thanks for you your interest! No, I'm not writing backwards. The secret is given here: ruclips.net/video/CWHMtSNKxYA/видео.html
Cheers,
Dr. A
Matt AndersonDr Maartje Sevenster
have u stopped making videos now??????????
just love this.....you gave ne the core idea of RC circuits
Thank you so much. Your explanation is beautiful.
32:57 Solved my issue - Thank you Matt
Thank u so much ... Ur a great help for students who like to self study
Excellent good vibes physics lectures!! Making it easy to comprehend.
Glad you like them!
Cheers,
Dr. A
Very clear education again. Thanks.
wow...you are a great teacher...very clear.
I dont get the up and down rule for the resistor, so if the current goes up through the resistor the result is positive IR and vice versa?
Cool video, thanks for sharing with us, well done :)
btw, are you writing right to left on this crystal-board?
No, It's a special glass made for lecturing. Well, I am 4 years too late to answer this you maybe figured that out by now.
@@subasan4798 ikr 5 years ago, such a long time.... but I'm still watching this video just for review...
The last part of the video reminded what it's really like good 30 min to 1 hour problem solving that's good ol physics.
Thank you sir for your clear and simple explanation. ❤❤❤
Don't know really what to say, but this is very good teaching, I presume they don't skip your lessons.
Kind regards.
Dr. Anderson, I still don't understand. Why do you add the voltage from the 3V and the 64 Ohm resistor?
THANK U SIR.GREAT EXPLANATION AND PRESENTATION....
Pretty awesome
Hats off to u , sir 🥰
Thank you very much for this video information.
You are the god for me. Keep it up sir
hi just wondering i got taught a different symbol for a resistor it was more like a box which one is correct. Another question when do you do live streams?
DR Anderson I have to tell you that I admire your job, I've understood and practiced everything I was supposed to learn in two weeks,thanks you, regards from colombia.
I like this, feel's futuristic
Does anyone else think this guy looks like Benedict Cumberbatch's twin brother? Except instead of Doctor Strange, he's actually... Doctor A? No?.. Well anyway thanks for the video! Crystal clear now.
I set this video to double speed.. but it is still slow yet the explanation is great!
Asteroids... 7/11... Slurpy... waiting... All so true! Great lecture.
You are awesome teacher... I just subscribe to ur channel and I lv it.
Thanks The great Doc. for this lesson. very well explained. wow.
My pleasure, glad you're enjoying it.
Cheers,
Dr. A
@@yoprofmatt Hi prof
i understand everything he says, a rare phenomena in physics!
Ichai Assedo,
Thanks for the comment, I appreciate it.
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Hi, in relation to the last section (the exercise at the end of the vid) i have a similar problem which has 3 batteries and 3 resistors (3 loops in total), i have the values for the batteries but not the resistors, i am supposed to find the voltage of one resistor. and do not know where to start to tackle this problem. Can you help?
+Terry T You'll have to use Kirchoff's rules, just with three loops instead of two. Rules: 1) Voltage drops around any closed loop is zero. 2) Currents don't pile up at intersections. Good luck, Dr. A
very educative. Thank you Regards
... your'e a legend Matt. You have empathy for those of use that never qualified to do calculus at school but are not stupid.
Do you have any tuts. where you explain the elements and applications of the differentail and integral calculus ... your way ? :-)
Thanks for the kind words. I don't have lessons for calculus or diff. eq. up yet, but hope to in the next year or so. Stay tuned.
Cheers,
Dr. A
at time 57:37 of the video, I1=I2+I3 and that's why there was a little bit error in the value for I3 that should be 0.15A instead of -0.15A. THANKS FOR THE VIDEO
I think i saved a liion lithium battery that was over charged 5v instead of 4.2 its a 3.7.. I just charged it at like 2.3 and when intead of waiting till it reaches 4.2 i just waited till it bropped to 4.2...was thinking is if equal balancing same length of power equals same power. Also was controlling the volt with a pwm controlled for a motor. The controller changes slightly when using multi-meter and was strange as you mentioned how resistance is how electronics function so it was changing pwm output when re measuring. I used a motor that used same amount of power as controller to set the mark on the dial. Hope this is making sense to someone and helps make more sense.
So if I have a schematic all I have to do is find equivalent resistance? What about the other components? Do I just ignorthem? I'm mean like transistors, opamp, ic.
Sir Matt Anderson,....you're COOL, i mean ELECTRIFYING COOL GUY!😎, your VIDEOS are all MEANINGFUL and has GREAT VALUE, THANK you SO MUCH!👍
Artfloat Full (awesome handle), you ARE very WELCOME!
Cheers,
Dr. A
Very nice video Dr.
can you also start making videos on the first order circuits?
+Mubarek Kurt Thanks for the comment! I'm trying to add more electronics in the next few months. Stay tuned.
Cheers, Dr. A
Thank you Dr. ! love you
I love learning about red stone engineering
3:35 Magic!!!!
Sir can we solve this by rearranging the circuit
I finally understand this material. Thank you!!! ^_^
Difficult material, so congratulations!
Cheers,
Dr. A
@45:50 Is There a - I1(64 ohm) ???? Please Explain If It;s Okay The Effects Of I1 and I3 Are Felt through The 64 Ohm resistor?
321reh,
Remember that I3 is related to I1 and I2 through the equation shown in the video: I2 = I1 + I3. So if you just keep it as I3 through the 64 ohm resistor, you could equivalently write that as I2 - I1 through the 64 ohm resistor. Hope this helps.
Thanks for watching and asking.
Cheers,
Dr. A
Thank You For Your Explanation!!! I Took This Subject 40 Years Ago And I Forgot Some Key Facts!!! A Very Good Explanation You Have Here DR.A!!!!( And A Great Video Too!!!)
Hi Matt. On the problem, how did you determine the direction of the current in the middle path without doing any calculations yet? I am sure it's obvious and I am just missing it... Thank you!
+George Tempesta you don't have to determine it. It doesn't matter what the actual current's direction is.
+George Tempesta
George,
What time mark at you looking at in the video?
Dr. A
33:00 if we have a current source instead of voltage source, how is the behavior altered? Thanks in advance
athantas,
Great question. Current sources tend to have constant current (varying the voltage), whereas voltage sources tend to have constant voltage (varying the current). Most devices like batteries or wall power act like a voltage source.
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Thank you!
thank you
I have a question, at 42:42 how do we know that current I3 points down?
Ham,
Great question! You don't really know initially, but if you're consistent with applying the rules, it doesn't matter. You can pick either direction, and if you chose the wrong direction, you will end up with a minus sign.
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Matt Anderson Thank you, Sir, for the great explanation!
Very good lecture , thanx
You are very welcome. Keep up with the physics.
Cheers,
Dr. A
thank you prof
if the value for the current is negative does that not mean that you've chosen the direction of the current in the circuit wrong? i'm so confused.
Yes. Just pick a direction for the current and if your answer turns out negative, the current is going the other way.
Excellent point.
Cheers,
Dr. A
Is a bit wrong to say that positive charge is going to on side of the capacitor, unless they are Hydrogen nucleous in a fuel cell.
Fair point. We know that it's electrons that are moving. So when they move away from one side of the capacitor, they leave behind some unpaired positive charge.
Cheers,
Dr. A
At 42:40, how did he know that I3 was going to go down? It seems to me like if we look at the 58V battery, the current should be flowing from that into the 64Ω resistor, which would make it going up instead.
It doesn't really matter from which battery you decide to flow the current as long as you use kirchoffs correctly. Its just that calculations are easier if you choose the one with higher potential difference
on a solar charger I made if you measure the voltage after the diode while the circuit is open there is 0 voltage drop. once you put a load on the circuit the voltage drop is 0.2-0.3v. is there a reason for this?
+micheals1992
I would need to see the circuit diagram and where you are measuring the voltage. But basically remember that since V=IR, if there is current and resistance, there is a voltage drop. When the current is off, there is no voltage drop. When the current is on, there can be a voltage drop - including in the wires themselves since wires still have some small resistance. (Diodes themselves have a built in voltage drop, but this is usually closer to 0.8V.)
Thanks for the question! Hope you're enjoying physics.
Cheers, Dr. A
Matt Anderson It's a Schottky diode which is why the v drop is low (multimeter says 0.2v in >l mode). it's a pretty basic circuit and the diode is only to prevent discharge during the night.
I recently got a multi meter and I decided to make a solar AA/AAA battery charger while playing around with some parts I had and I found it interesting that the diode only had a v drop when a battery was connected. I'm also making a DIY Velocycle and wanted to make an indicator system and a central power system for all the lights etc which is why I'm trying to learn a bit about electronics before the summer comes and I finish my project for this years bike show.
thanks anyway! :)
*****
Good detective work! Sound like you're having fun.
Of course a diode sitting by itself should not have a voltage drop, since that would mean it could move charge, acting as a battery. And we can't just extract energy from nothing.
And by the way, electronics is a blast!
Cheers, Dr. A
Matt Anderson is there any better way to do this circuit?
postimg.org/image/jo0qomh6d/
Open circuit/indicator switch in central position - postimg.org/image/cyu78lvud/
it says the load is 711uA on this which is around .002W but maybe the program i'm using isn't entirely accurate. I'll probably put an isolation switch on the battery for when it's not being used.
Siempre vengo por el titulo en busca de algo ...Lamentablemente nunca lo encuentro. Estoy buscando los problemas relacionados a capacitores y resistencia en paralelo usando un diodo rectificador y una fuente de corriente AC. No hay nada.
Thanks Sir
The video isn't mirrored. He just stands behind a special glass and writing on that glass like usual. People on the other side of the glass can also see the writings on the professor's view. It's just a special glass.
Thank you
You're welcome. Thanks for watching.
Cheers,
Dr. A
Thanks
BRO RIDe's,
You're very welcome. Glad you're enjoying the videos.
You might also like my new site: www.universityphysics.education
Cheers,
Dr. A
what kind of board is that!
i wonder too
But the capacitor get instantly charged when no resistance in circuit so at t=0 there is no current
Zuber,
Excellent point! You are indeed correct that for ideal circuit elements with R=0, the time constant τ = RC = 0. The capacitor would charge up (or discharge) infinitely fast.
Of course, this is only the case when all R=0 in the circuit, including the wires and the voltage source. Any real wire (not superconductor) has some finite R, and any voltage source (like a battery) has some internal R.
Thanks for the comment and keeping me honest!
Cheers,
Dr. A
Sir at t=0 when in a RC Circuit can we replace capacitor by conducting wire
i am still confused that how are you writing there?
+Vignesh Varan LOL glass, mirrored video.
R u writing using left hand?
Vignesh Varan I am not in the video, and he is using his right hand because the video is mirrored...
The video isn't mirrored. He just stands behind a special glass and writing on that glass like usual. People on the other side of the glass can also see the writings on the professor's view. It's just a special glass.
@@subasan4798 It also only works down under, so do try this on the Northern Hemisflat.
Sir how I can contact you
waiting for your lecture on Relativity.
Hopefully coming soon.
Cheers,
Dr. A
Wish I could draw like that.
r2 and rp34 are now in series
Correct. As seen at the 3:50 mark.
Cheers,
Dr. A
36:35 Magic!!
Sorry about earlier comment
+Sagnik Dey
The magic of editing!
Cheers, Dr. A
+Matt Anderson Oh yeah! I forgot to say Thank YOu!
Excellent vid
You should've edited it out, or delete the comment. lol
😊
About 10 nos of transparent Self adhesive sheets laminated to this crystal board, one over the other, can reduce the labor and time required to erasing the board.
Interesting idea, thanks.
Cheers,
Dr. A
منور ورده 🧡
please who can explain how he writes like this ?
Mc Gyver is teaching electronics now?
If I have to do this kind of a presentation, perhaps I would have a stensil (a preprinted matter, in mirror image, of the text, I may have to write, with some mechanism to turn it over, as and when required. ) at the camera man's end.
Unnecessary. Write normally: www.learning.glass
Cheers,
Dr. A
Thanks. At times, my( google indebted) mind tries to read too much in to the things. Usually, that amounts to having two holes in the door, for a cat and a kitten.
He's excellent/
Thank you. Unless you're talking about someone else.
Cheers,
Dr. A
how does he write backwards?
I’m trying to figure out the board he is presenting the lessons on... he’s on one side, the live audience is on the other side... how is what they see not a reversed image ?
I understand software could reverse it for RUclips viewers.
Sinner 72,
Not writing backwards (I'm not that talented). The board is called Learning Glass. You can check it out at www.learning.glass
Cheers,
Dr. A
Matt Anderson awesome thanks, love your channel
Why resistor needed?
www.udemy.com/rc-circuits-for-interview-part-1/
Another ideal ammeter is estimated equal to 1 ohm.
The lower the better. You don't want your meter to affect the current.
Cheers,
Dr. A
how does he write backwards so fluently?
+8bitslime well, i think they mirror the video before they uploaded.
Django Candy Ahh yes, that would make sense...
+8bitslime It gives it away near 26:08 when he turns the page of his notes the opposite way to normal :P
+Django Candy No, they didn't mirror the video because the students whom he is teaching would not get anything at 28:55 .
+Adam Whitney the buttons on his shirt are also backwards and he's wearing his wedding ring? on his right hand
Not me watching this video at 2:30 in the morning the night before my final 😳
Studying all night for a final? I can't imagine doing that. Oh wait, that's exactly what I did in college. Right.
Cheers,
Dr. A
@@yoprofmatt Thank you so much for the videos!! I feel pretty good when I walked out from my final.
can u be my physics professor like omg
MrCRS1990,
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Any EE students?
oh he flipped the video....
the electricians nightmare!
It's not that bad!
Cheers,
Dr. A
Who's here cause of the rona?
Kevin,
I certainly am. Be safe.
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
He is writing on a mirror
Not exactly, but mirroring is involved. See www.learning.glass
Cheers,
Dr. A
aids
MOST BENEFICIAL IN REAL LIFE IF YOU EXPLAINED HOW AND WHY WE USE CAPACITORS!! AND WHY WE USE THEM COMPARED TO RESISTORS!! AND: WHAT DOES IT MEAN: (FARAD) AND WHAT IS IT EQUIVALENT TO VOLTAGES OR CURRENT....ETC!! WHY WE USE CAPACITORS IN REAL LIFE AND FOR WHAT? WHAT'S THE BENEFITS IN REAL LIFE APPLICATIONS? please if you explain the basics first and what does it mean and difference between current and Amperage and energy and watts......etc= if you do (on youtube) as i noted above, it will be too far beneficial to common (lay people) readers; so to benefit them in real life. The concepts you been teaching are so technical to lay people; Unless you only targeting those from all population who have experience in Electricity subject!!! Anyway: you look very rich in knowledge in this Area but too technical!! = cheers buddy !
eden,
Lots of questions that I probably can't answer here.
But thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A