Resistance & Resistivity, An Explanation
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- čas přidán 7. 07. 2024
- Goes over an explanation of resistance and resistivity. Includes a worked example.
Resistivity is a property of a material that tells you how strongly it resists or conducts the flow of electric current. A low resistivity indicates a material that allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is the ohm-meter (Ω⋅m). Resistance of a conductor is directly proportional to the length of the conductor and inversely proportional to the cross-sectional area of the conductor.
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THANK YOUUUU! I REALLY UNDERSTAND IT BECAUSE U REALLY EXPLAIN IT WELL!! GREAT JOB! YOU ARE THE BEST!
You are very welcome, thanks for watching and commenting.
Good for understanding anything because you don't understand you look upset... so always be understanding. .
where
Finally , I like the way you teach without adding unnecessary information to confuse , thank you
You are very welcome!
The best explanation I’ve ever saw about the theme. Thank you very much!
You're very welcome! And thanks for the positive comment.
I can't thank you enough. Seriously, best explanation ever!
You're very welcome! Thanks for the nice comment.
I was always so confused by rho, this cleared it up. thanks so much!
You're most welcome. Glad it was helpful!
Im a 9th grade student and we have a homework for variations. I realized that this formula was a combined variation, so it peaked my interest cuz I'm also into physics, and even though I spent all night trying to figure out this whole ohms and resistance thing, It was worth it cuz I managed to present it in our homework and I learned something new and fun. Thanks for making this video!
You are very welcome! Glad you had fun learning.
Thank you very very much. I'm an Arabic girl but I watch your videos to understand. I appreciate your explanation very much🌹🌹
You are welcome 😊 and thanks for commenting.
Thanks! Really good way of explaining different resistivities (40secs - 3:23secs)
You're welcome! Glad it was helpful.
That was really so amazing and useful for me ! Thanks for this amazing explanation !
Glad to hear that! You're very welcome.
You are the best! Thank you so much you have saved the day!
You are very welcome, thanks for watching and commenting.
Thank u so much sir! You gave me the actual consept about resistance and resistivity. Love for teaching method.
Glad to hear that, you're most welcome.
Clear and concise. Well done.
Thanks a bunch!
This was extremely helpful for my Electrotech VET course, Thank u heaps
Glad it was helpful!
Well elaborated explanation! Understood immediately:)
Glad it was helpful!
i have a physics assignment due tomorrow and this video helped me
thanks :)
That's awesome. Glad it helped!
Thank you for making this video.
My pleasure, I love to make these videos!
Can you imagine i have exams tomorrow and I'm too lazy to read😪
Good luck!
I'm in the same boat. I have one in 3 hours
I am in the same boat an exam one week later !!!!!!! I hate physics
Really it was a wonderful class and I understand it. . Thank you so much for guiding. ..
You're most welcome
Awesome! Was learning about how toasters worked as mine peaked my interest and now I’m here 😂😂😂 physics is awesome
Very interesting....hope the video was helpful.
Thank you so much , you are really creative person
You're very welcome and thanks for the nice comment!
Now i understand. you are amazing 💞 thannkk youu.💙💙💙💙💙
Happy to help!
This was so helpful thank you so much for your help 😄💕💕
Glad it was helpful! Thanks for taking the time to comment.
Thank you great job
You're welcome and thanks for watching!
Really good at teaching , I am understanding simply
Excellent, glad to hear that!
THANK YOU, I got an A on my exam because of you!
Fantastic, so glad to have helped!
Thanks , because of this video I really understand my report today
Great and thanks for the comment.
nice sir and was very useful for my board examination preparations
All the best, hope the examinations go well.
I like how you explain,
I like how you comment.
Thank you, for you i understand very well
Glad to hear that, you're welcome!
thsnks sir
Amazing teacher
Thanks, glad you think so!
thank you for the explanation sir.
You are welcome
It's really helpful
Glad to hear that, thanks for the comment.
Thank you
Please explain the A(area) by using pii diameter square. Relation between cross section area of wire and length.
Really helpful
Thanks again
THANKYOU SM IM SOO GRATEFUL FOR THIS VIDD
Thanks for subbing and glad to be of help!
Exam in half an hour thanks so much!
Best of luck!
@@stepbystepscience I passed!
@@cd2773 Great and thanks for letting me know.
Nice sir it's more helpful me in electronic subject thanks for make this video🌹🌹
Most welcome and all the best!
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Great clear video but you might like to consider a future version expanding on resistivity. In this one you did give it in the units ohm-metres (which itself might benefit from explanation) which is fine for most electrical and lab work but in the electronic industry, especially where they make actual resistors and also print them as part of ceramic hybrid microcircuits, new people are often bemused to find data sheets and pots of material giving the resistivity of the contents in "ohms per square". And of course, the first question is "ohms per square what?".
Thanks a lot sir 🙏
Most welcome!
Thanks sir
You bet!
Thank you sir l have understand that. Resistance. Resistivity but. How. Is. It temperature dependence on a conductor
As the temperature of a conductor increases the resistivity and the resistance also increase. The equation assume a constant temperature.
Thank you sir ji 😊
Most welcome, all the best
great video
Thanks for commenting.
Thank you..hope you have the explanations of Vector as well.
how did you use the scientific calc? idk how
That would be hard to explain here, best to ask someone to show you on your calculator.
can you please cover harder questions on the same topic ..if you can
great content
Feel free to make a specific suggestion about the type of problems you'd like me to cover
thank you so much omgg
Happy to help, thanks for the comment!
Tysm
Welcome!
Will combining high resistance wires together end and end, but they aren’t touching in the middle reduce the resistance
not sure what you mean..."but they aren't touching in the middle"?
@@stepbystepscience lthey are coated along the wire except the ends which are all connected
good staff
Thanks!
how do you re arrange to solve for L in original equation of R=pL/a?
L=RA/p
@@MrDac87 thank you!
keep it up
I'm trying, thanks for the encouragement.
Thankkkyouuu
You are very welcome.
Please answer me this question.I know that your answer here but not adject result in cable catalogue.Please answer me this question.what is the resistance of a copper wire that is 1m long and has a diameter of 3.0 rm?
Use the equation to fire it out.
thank youuuuuuuuuuuuuuuuuuuuuuuuuuuu
Please explain that conductor temperature
ok
wow
pi r^2 is used when it is radius but this problem is in diameter so pi/4 and r^2
Plz can you solve the equation step-by-step
Is r suppose to be 2.0 x 10^-3
nevermind thanks for the clear explanation
You are welcome.
What is the resistance of a healthy man
Men are very resistant, health or not.
how to convert ohm square meter to ohm in impedance measurement
if im not mistaken, you must divide it with 100²
Sir how to take 10 power 3
You should be able to do this on your calculator. They are all different so you may need to ask someone.
Really well-explained thank you so much. You're a brilliant teacher. The ones who gave you a thumbs down must be a bunch of illiterates. Keep up the good work.
Thank you very much! Appreciate the comment.
I don get the same resistence in the end???
Are resistance and resistivity the same?
no
@@stepbystepscience thanks for answering. Btw that was a question on my quiz.
This is so good thnxxx
You're welcome. Glad you liked it!
i when i try to calculate for myself using your questions i geta completely different answer. im using a casino calculator btw
Then you are probably not using the correct order of operations.
Write the definition of resistivity
Silicon is semiconductor
You are right!
Yehhh''
Germanium too
Isn't supposed the result to be 1.87×10^-5
Good question, but I believe you forgot to square the radius for the area? Does that help?
@@stepbystepscience oh yes thank you so much
But temperature is also a factor of resistance
Yes, but not for calculating resistivity.
i love you
Awww, thanks!
I don't know how to put this into my calculator
Then you need to ask someone to show you on your calculator.