Physics 13.4.2b - Resistors in Parallel

[ivanbgct]

Hey Dere,

I liked the video, Do you happen to have a video where you show all the steps into getting the right resistance? That part lost me since I have never been thought anything more than flipping the fraction,

Thanks

[OnyangD]

Haha no prob. Just trying to be funny. I learned everything from you. You are an example of how all teacher should be.

[derekowens]

@OnyangD Yes, and thanks for the good laugh! Glad you like the videos.

[derekowens]

@OnyangD Haha - thanks. I appreciate the thought - in the right way, of course. Gotta delete that comment, though.

DO

[CuTieMeiMei08]

Derek Owens... ur explanation makes my Physics report more easy 2 understand...

ur video really is a great help 4 a 4th year high school student lyk me.... Thenks so much :)

[shauryachopra]

@derekowens, what software do you use to create these tutorials, software seems to be pretty awesome! n yeah if I keep on referring to your tutorials, I swear I'll score an A grade in all my assessments..., I'd love to know about the software...

[oxyfenylethylamine]

fajny filmik. lepiej od mojego nauczyciela. :)

[derekowens]

@oxyfenylethylamine Dzięki! Cieszę się, że się podobało.

[1234LMAO12345]

indeed. boobcicle.

[insertoriginaluser]

I wish my teacher actually cared to explain why the formulas are like that instead of asking us to brute-memorize it. I can remember it so much easier this way. Thanks for the vid.

[domyaska]

wonderful for me also this algebra explanations!!grazie

[zelunika]

yeah same amount of current passes through all ze resistors...but if one of ze resistor from all 3 haz got more resistance then it may lose more electrical potential energy...so by coming out of resistors iz it possible zath there would b different potential energies one resistor lose  more electrical potential i.e having more resistance.... nd the other less having less resistance...

[derekowens]

If ze resistors are in parallel, and one of zem has more resistance than ze others, then zat resistor will get less current. Zhere will be fewer electrons flowing through it. Ze voltage will be ze same, though. Each electron still loses ze same amount of energy. Zhere is less energy, though, because of less current, fewer electrons, not because of less voltage.

[kevrox911]

@derekowens i dont understand one thing in this vid are you saying that the electric potential energy(etp) per cahrge when moves through a resistor says one resistor will lose all of its etp. If it does so, how is there flow of current after charge comes from resistor to negative terminal

[derekowens]

@kevrox911 That's a great question. In reality, there really is a tiny tiny tiny potential difference between the last resistor and the other terminal of the battery. For almost all circuit calculations, it is so small that we can ignore it, but it is enough to get the electrons to move, simply because the resistance in the wire is so low.

[kevrox911]

@derekowens i dont understand one thing in this vid are you saying that the electric potential energy(etp) per cahrge when moves through a resistor says one resistor will lose all of its etp. If it does so, how is there flow of current after charge comes from resistor to negative terminal since the voltage or potential difference euqal to zero.

[derekowens]

@kevrox911 Here's another way to think about it. Imagine pouring water on your floor, with the door open. Water will not pile up on the floor to any significant height. It will flow out the door. Even a very slight depth will cause the water to seek the lower energy level at the door. In the same way, even a very small piling up of electrons in the wire, after the last resistor, will cause them to move on to the lowest energy point, which is the final terminal of the battery.

[kevrox911]

@derekowens thank you so much for the explanation it makes sense now

and just one more doubt, how do we know how much electric potential energy a resistor will take away from a charge whether how will we know whether it will take less or more electric potential energy

[derekowens]

@kevrox911 Well, it depends on what else is in the circuit, and how those circuit elements are connected. If there are other items in series with the resistor, then the voltage will get split up between them, not necessarily evenly.

[sutonchef]

@derekowens ZOKAY

[jackel111]

thanks ur better than my physics teacher