RC Circuits (5 of 8) Charging a Capacitor, Time Constant, Voltage, Current, Worked Example 

thanks you explained it way better than my teacher

Your videos are getting me through my undergrad ...as a physics major some concepts are hard for me to understand and you've been able to explain them so clearly I appreciate your work/videos!!! THANK YOU!!

I appreciate not only that you are so well informed and detailed but also that u take the time to share your knowledge for us :)

I'll be honest, I hardly ever subscribe to any RU-vid channel now a days but you sir deserved it =)

Step by step is truly what you do. I like watching your videos and thanks for all your help

Thanks a million for this series of videos! I was super confused about this subject and now I am very confident. I've understood this material completely. You saved my Physics prelim! Thanks a bunch.

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Awesome....Just Awesome..

Thanks too much. Did know nothing before the first video of that playlist on this theme, but now, on the fifth video, I was able to solve everything by myself. I think it is kind of a good progress, because I needed just several hours to extend the knowledge on this topic

Thank you so much for your videos, I have learnt a lot from you that my lectures and reading couldn't teach me.

Easy to understand the way u explain is awesome

As always you save the day! Thank you so very much for this video.

Perfect pace for your explanations!

way better than my teacher, thank you!

Very good. I am a US Navy trained construction electrician with a bleed resistor calculation concern. I believe you have given me enough ‘heads up’ information.

pure simplicity = great thank you. peace and love

In a word, Brilliant.

If you're lost in this video you may have accidentally skipped Video_4 and went from Video_3 to Video_5 like I did. Video_4 is out of order for some reason. I was lost the whole time until I noticed this.

very concrete and simple explanation

Nicely explained, best out there

Thank you. That was really useful to my understanding

Awesome video! Explanation was super clear! Liked and subscribed! Time to check out your other videos!

Thank you. this was extremely helpful.

Thanks Mate, very clear explanation.

very good sir👍👍👍👍 love from all Indian students

Thank to Author/ presenter who explain this subject clearly. But I still don't understand yet is how to calculate time to be charged fully ?

holy fuck dude, this guys videos is like a exam review, i have final tomorrow and i know shit about the circuits, after i watched his video i know everything omg !

BRIAN SWARTHOUT, Which Buttons on the calculator has that "e"? I'm using the free windows Scientific calculate on a PC but I don't see the "e" and to add the -1 above the e

Thanks! I need some more training in thinking about the I(t) can be substituted with 0.75*Io . I can see what you are doing, but I don't think I would have come up with this on my own. What should I use as training for seeing this immediately?

Thank you very much. This is so awesome.

Wow thanks for making this kind of videos 😇

GREAT EXPLANATION!!!

Perfect explanation , thank you .

good video. One question - t and tow, I don't understand how you sometimes use t in seconds like 6 secs, and othertime you use t = t secs times RC?

Thank you sir so valuable video u made,do u have any differential amplifier,common mode rejection ratio video in ur channel

This is very helpful!!! Thank you so much!!

thank you this was helpful

Hello, thanks for sharing. Please I have got a small solar panel and its out is 8v and 0.02mA, but when I add a small load, the voltage drop to 2v. I added 0ne 2200uf capacitor and the current add up from 0.02mA to 0.25 with the same volts. the capacitor takes 1 second to charge up to 8v and 0.25mA. Now I want to add up to 50 caps and put some components between the caps and the load which will be discharging each 10 caps in every other 5 seconds but the input of the caps will be connected to the panel continually to allow them charge. I need about 10AMP at the output of these 50 caps, so my question is will the output of the panel be enough to keep all these caps charged or do I need to put a boost converter between the panel and the caps?. Note that these 50 caps are programmed to be discharged randomly so there is going to be diodes but no resistors since I want to obtain high Amps at the output. Please help.

Amazing video.....thank you a loooooot

Very nice explanation

@step-by-step Science Im a little confused on how to find voltage across the cap after one time constant? the part where u replaced the t with -9.4, Thanks

What if you have more than one resistor? Which one will you take for the time constant? Or do you need the Req?

Loved it !

a little confused - can anyone explain - how for question 1 and 2 formulas gone from v(t)=12v(1-e-1.28) to working out the number in brackets - eg quest 2 is 12v(0.722). Where did the number 0.722 come from? How was it worked out? Thankyou for any explanation

very helpful.thank you

wow great video

this was so clear!

well described, thanks

What if there was a resistance "after" the capacitor? It wouldnt matter to calculate the constant, would it?

where did u get the 9.4s time constant? im pretty dumb :(

Hi. I have a problem. I'm stuck with this Euler's number. I know its value and also I have a calculator (on my cellphone) wit this function on it. But no matter what button combination I'm using, I simply can't get the same result as you. I have even tried some online calculators but with the same result.

How can we find charge when switch is open

I love you so much!

another great video!

for question 1 why is the formula to find V=Vb(1-e^-t/rc)? I thought it was V=Vb(e^-t/rc). where did the 1 and the minus in front of the e come from?

Good work

Thanks, its possible charge capacitor linearly? any readings?

Awesome ❤️❤️❤️

From where you Bring 0.75Io I didn’t understand last step

Hi, how do you get the -0.288? Thanks

Same problem with current source what happen sir ,

What happens when capacitor is constantly charging? For ex: the capacitor is 50 volt, but you use a 9 volt battery to hold a charge then use a step up converter to boost it to 50, after the capacitor is at 50 use a step down converter to 9v so the the step up converter can work and is constantly going.

is the voltage across the capacitor the same as the voltage across the resistor ??

where is the 10 raised to the power -3 came from?

Is the 12 volt supplie also refer to the capacitor voltage as well?

THIS IS SUPERB

What is "e" in the V(t) equation??????

Thank you sir

On question 3, i dont' undertand how you come up with 5 time constant...thanks :)

Thank you

i very much like this

thanks broham

this is my nice positive comment

nice it wz helpful but i need a two way switch problem

Excellent

helpful video thx :)

What if it says what’s the voltage on the capacitor

That could not be any clearer.

Formula's that don't confuse me with differentiation? I'll take it!!

Awesome.

Nice positive comment

How to fin potential difference across the circuit

I ordered Raycons mid December with a 2-day ship. They are still not here. Customer service is terrible!!!

1st anser t=9.7 how get,

Fucking Excellent 10/10 A+++

Gold.

thanks!!!!

2:13 if for some reason you don't have "e" on your calculator it's kind of a pain in the neck to reach the value of 0.86466471676 unless you know a bunch of decimals following 2.71828... etc. So, here: web2.0calc.com/

thanks that will help me !

I caught everything...except the value of "e". (The last time I dealt with higher level math Email was new technology and Bush was president...The older one).

Please as soon as possible

why does no-one explain the e in the equation .

Potential difference

I love you

4 downvotes -> 1 is my professor, 3 are my lab teachers

Wow...

This is assuming that your battery can supply an infinite amount of amps 😂

This nigga is the shit

Nice work