Kirchhoff's law application: 2-loop circuit solving | Electric current | Physics | Khan Academy
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- Опубліковано 11 лип 2024
- Let's apply Kirchhoff's voltage law and Kirchhoff's current law in solving a two-loop circuit!
KCL states that the total current entering a node = total current exiting a node, charge conservation!
KVL states that the total voltage change in a closed-loop = 0, energy conservation!
Using these laws, we build equations for current and solve them algebraically.
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Created by Mahesh Shenoy
why -8 -15 = 23 @12:48
That's an error, thanks for pointing out. It should have been -23. But the final values are correct, phew!
I dont think ive ever seen this be explained more conceptually and clearly anywhere, thanks a lot man
thanks bro this 14 min vid is much more productive then a 2 hr lacture all clear bosss ⚡⚡⚡⚡
I'm always confused with these laws and but your video makes it a lot easier to understand. Thank you so much.
A big thank you.. from the bottom of my heart sir..... u always makes every difficult concepts so easy wid your excellent teaching skill🙏☺️
Literally man hats off i have gone through most popular videos on UA-cam but this is seriously incredible
Thankyou so much Sir. I was struggling with it for a long time😭😭
Beautiful!
great help my dear, thank
Isnt it easier to take sign convention acc to the direction of the loop vs current
Thanks mehesh shenoy sir....
Thanks a lot 🙏🙏🙏
crystal clear
this video is sooo underated. i hope you get more views bro
well, thanks
How can be the direction of i² upward ? Shouldn't it be to downward ?
Great video
Thankyou sir
Thank u so much.....
Thank you so much sir ☺️☺️🎉
Good job
thank you!!!!!!!!!!!!!!!
Thank u 🎉
The directions of the Currents in different loop as considered by is wrong because the flow of current in any circuit is always from Anode (The positive terminal) to --> the Cathode (The negative terminal) | Your explanation just made this law look like a Simple one.
Thank you sir 😃✨👍🏻
#SaveSoil
"kharrant"
Sir we can put the current direction of any loop to wherever we want right
love you❤❤❤❤, thanks 🙏🙏🙏🙏👍👍
Mera to correct ans aya peheli baar😭
Best vedio ever
This video is underrated 😢
toooo 👍 gooood
@12:34 shouldn't I2 be equal to 2A?
Please upload more videos on important physics topics,it would really be helpful sir!!!
1:50
this guy is one man army
why I2 move upwards, ??
How do you decide what side of the resistors are positive or negative? I can see no reason why you decided to do it the way you did? Will it work any way around?
Based on the direction of the arrow or rather the current flowing, current always flows through resistors from the + terminal to the -- terminal so that's why
@@karimagambo2822 then why I2 current move to upward direction 2:28
This logic is flawed. The only way is to take sign convention based on direction of loop
sign convention? What do you men by this?
@@punitpasricha3876
👏👏👏 thank you
In Vb why is it -I1+I2
❤
Say hello man ! Why don't you ?
Anyone got the the answer for Va - Vb ? 13:52 I'm getting -56V
Why I2 current move to upward direction 2:28
thats only an assumption you make. if you look at it like this the 32v supply is more stronger than the 2v supplies, which would automatically make all currents flow from the positive side of the 32v battery. Which would make I1 and I2 flow in anti clockwise direction and then split at the junction and I1 will go leftwards and I2 downwards , then the currents will be positive. But we assumed current in right and top directions which is opposite to the original flow, thus we got a negative current.
@23:13
I have got 2A
Vb= Va-4. Anyone else worked that out?
why are we multiplying that equation by 3
to cancel out a variable
To cancel out I1 value......because of this, we can find I2 value independent of I1
To balance the equation
My physics eggjam in 2 days guys.
Simultaneous equation solving
the explanation was amazing and it was really helpful ,thank you sir
Tf?
Sir why we are adding at 3 ohm resistor because resistor reduce voltage again you will say sign convention but it does not convince mee sir please explain🤔🤔🤔
Can you clarify the time in the video that you are referring to?
Here is one way to think of it. Current direction through the resistor is always from high potential to low. So, throught a resistor, potential drops in the direction of the current. Which means potential increases as you go through the resistor in the opposite direction of current.
In reality it will do or we are imagining that according sign convention
@@jsathibabu8822 When you go from bottom of the slide to the top (against the flow of children), you are going up the potential right?
It's as real as that.
Sir why the current flowing through 2 voltage battey (purple colour) is not entering into 2 voltage battery (yellow colour) because it has to flow EXPLAIN , are you mahesh shenoy sir if you are the mahesh shenoy sir thank soo much for helping my studies thank you 😃😃
Sir one doubt that in circuit how a positive charge move opposite to the current direction
Your answer is wrong