So, why then, when I connected 10K 0.25W resistor to the 12V battery it got hot enough to burn my finger? According to the calculations: 12v/10000 Ohms = 0.006Amps; And then 0.006A*12V = 0.072Watts. While resistor tested was 0.25W - way more then 0.072Watts required. Why is it getting melting hot?
it adds the same! just sum them all up inversely for parallel resistances. so for 3 resistors it would be (R1+R2+R3)/R1R2R3 just make sure to apply the directions correctly based on the direction of the current by Ohms and Kirchhoff's laws :))
SßS ßS the voltage across each branch in a parallel circuit must be the same, so across the center branch the voltage drop is i2 * 1 and across the last branch it’s i3*3. each of the terms is given by R*I.
You go through the smallest steps which isn't necessarily good. At this stage students can obviously understand the calculation steps while you just go through the conceptual steps. It was hardly a 2 or max 3 minutes question that you explained in 13 minutes. You explain quite clearly though.
GOD bless you ......excelent lecture .......do you know this JESUS is love you ,dead for you....... JESUS IS the way the, truth and the life in holy bible joh 14;6
Lol, no need to get all worked up over fractions. It was to show that the power dissipated was exactly the same as the power supplied, no rounding errors.
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
There are loads of students suffering in University who would love to have teachers like you.
I applied for over 100 university jobs like 5 years and never heard back from them. I decided to start Physics Ninja.
@@PhysicsNinja That's unfortunate and unjustified unfortunately
Have you ever tried including your channel link in your resume?
You're kind of lucky. I am in high school lol
@@PhysicsNinja I'm sorry but thank God they refused you otherwise physics ninja wouldn't exist. Their loss our gain 🙏
@@panch2oo2 Absolutely, lIfe goes on. There are many ways to teach physics outside of university. Thanks for the support.
Wow. This is the clearest explanation i found on youtube. Thanks a lot.
Thanks for the kind words.
U should go to extra class or unacademy then..👍
@@dancingdiva7106 us ka teacher hai wo 🤣
Wow nice video, I would like to thank you from the middle east, your teaching is better than instructors at college ❤, Many thanks
Have a test tmr and compared to my online teacher who is super dry and doesn’t really try to explain anything you are god sent
Good luck! You got this
Nice vedio. Love from India
Should not the power of the battery be negative since it's generated?
Thanks a lot your explanation is very good
So nice of you
Perfect for my exam, thanks!
bill burr is great physics teacher who knew
Subscribed 😊 this helped me answer my assignments
Sends love from philippines
Caca Cala Physics Ninja loves helping students. Good luck with your class!
How did 4÷3 become 4÷3
How does this problem change when you have two voltage sources? Do you use superposition theorem?
You clear my concept. Thank you
im confused where do you get 3/3 from 1/1+1/3
Thanks alot! the clearest DC circuit power dissipation in youtube hahaha
Thank you so much! Great explanation.
In which standard u guys learn this thing in USA tell me in from middle East
This is a first year college level question. Something you might see in high school AP physics.
So, why then, when I connected 10K 0.25W resistor to the 12V battery it got hot enough to burn my finger? According to the calculations: 12v/10000 Ohms = 0.006Amps; And then 0.006A*12V = 0.072Watts. While resistor tested was 0.25W - way more then 0.072Watts required. Why is it getting melting hot?
In India, this chapter is in last year of our schools. When do you study it in your countries?
Why the power calculated from the battery not negative !??
How do you solve if instead of a voltage you have 5Amps?
We put 3 amps in R=V/I and fing voltage
This helped a lot, Thanks!
Shouldnt the P.D across the 1ohm resistor and the 3 ohm resistor be 20V , as it is parallel to the battery?
Not in this case because there is another resistor in the same branch as the battery. The potential drop across each branch must be equal.
Amazing explanation!!! Thank you
what do we do when we have 3 resistance in a parallel circuit instead of 2? :(
it adds the same! just sum them all up inversely for parallel resistances. so for 3 resistors it would be (R1+R2+R3)/R1R2R3 just make sure to apply the directions correctly based on the direction of the current by Ohms and Kirchhoff's laws :))
@@aliciaroberts3965 thank youu alicia! ♡
I thought your cursor was a bug on my screen
Do you have courses about lenses sir? I always have a hard time solving them.
Not yet, optics courses are about a year away. Ninja is too busy!!
If you have a specific problem email onlinephysicsninja@gmail.com
Of course ninjas are always busy. Hahah. Oh, thank you I will. I'm looking forward to your next videos.
Thanks
EU TE AMO
Nice explanation
but why 1i2 = 3i3 ??
i didn’t understand this point💔
SßS ßS the voltage across each branch in a parallel circuit must be the same, so across the center branch the voltage drop is i2 * 1 and across the last branch it’s i3*3. each of the terms is given by R*I.
I'm glad you asked because, coincidentally, I have a similar question while doing a similar circuit for homework for my General Physics II class.
Thank you 🥺
thank you so much sir
Very nice
thanks a lot
I like to think that I have a pretty good grasp on combination circuits, but man, this was so confusing. Just use decimals man. So much easier.
You go through the smallest steps which isn't necessarily good. At this stage students can obviously understand the calculation steps while you just go through the conceptual steps. It was hardly a 2 or max 3 minutes question that you explained in 13 minutes. You explain quite clearly though.
how 3/4 ohms must be explained how it is obtained if possible, so that viewers can understand it well...
GOD bless you ......excelent lecture .......do you know this JESUS is love you ,dead for you....... JESUS IS the way the, truth and the life in holy bible joh 14;6
its a hard way for someone who is not very good in physics :(
❤
Honestly it is very messy
80/27 wtf
Needlessly leaving shit as fractions? Why? Nobody does this? You're own personal preference? Seriously dude, unreal
Lol, no need to get all worked up over fractions. It was to show that the power dissipated was exactly the same as the power supplied, no rounding errors.
Very messy
man decimals are easier to understand that's what our stupid DMMs display any ways nice video otherwise :)