Resistance & Resistivity, An Explanation

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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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Опубликовано:

26 июл 2024

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Комментарии : 157

@kcsamson3222 4 года назад

THANK YOUUUU! I REALLY UNDERSTAND IT BECAUSE U REALLY EXPLAIN IT WELL!! GREAT JOB! YOU ARE THE BEST!

@stepbystepscience 4 года назад

You are very welcome, thanks for watching and commenting.

@AACom-zb5cw 4 года назад

Good for understanding anything because you don't understand you look upset... so always be understanding. .

@Mdmasud037 2 года назад

where

@DL-ks8qi 3 года назад

Finally , I like the way you teach without adding unnecessary information to confuse , thank you

@stepbystepscience 3 года назад

You are very welcome!

@premiumedjr 2 года назад

The best explanation I’ve ever saw about the theme. Thank you very much!

@stepbystepscience 2 года назад

You're very welcome! And thanks for the positive comment.

@alexandergoodwin-elam6996 3 года назад

I can't thank you enough. Seriously, best explanation ever!

@stepbystepscience 3 года назад

You're very welcome! Thanks for the nice comment.

@romanmena9514 3 года назад

I was always so confused by rho, this cleared it up. thanks so much!

@stepbystepscience 3 года назад

You're most welcome. Glad it was helpful!

@t.alshammari7143 3 года назад

Thank you very very much. I'm an Arabic girl but I watch your videos to understand. I appreciate your explanation very much🌹🌹

@stepbystepscience 3 года назад

You are welcome 😊 and thanks for commenting.

@seanbalbuena8710 3 года назад

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!

@stepbystepscience 3 года назад

You are very welcome! Glad you had fun learning.

@ProfShibe Год назад

Awesome! Was learning about how toasters worked as mine peaked my interest and now I’m here 😂😂😂 physics is awesome

@stepbystepscience Год назад

Very interesting....hope the video was helpful.

@tummytime8707 2 года назад

That was really so amazing and useful for me ! Thanks for this amazing explanation !

@stepbystepscience 2 года назад

Glad to hear that! You're very welcome.

@LiteratureJunkie16 5 лет назад

You are the best! Thank you so much you have saved the day!

@stepbystepscience 5 лет назад

You are very welcome, thanks for watching and commenting.

@dorsonphang4400 4 года назад

Well elaborated explanation! Understood immediately:)

@stepbystepscience 4 года назад

Glad it was helpful!

@truthseeker4841 2 года назад

Clear and concise. Well done.

@stepbystepscience 2 года назад

Thanks a bunch!

@davidmctaggart4371 2 года назад

Thanks! Really good way of explaining different resistivities (40secs - 3:23secs)

@stepbystepscience 2 года назад

You're welcome! Glad it was helpful.

@fizakhan1427 3 года назад

Thank u so much sir! You gave me the actual consept about resistance and resistivity. Love for teaching method.

@stepbystepscience 3 года назад

Glad to hear that, you're most welcome.

@AnOrdinaryDaisy 3 года назад

i have a physics assignment due tomorrow and this video helped me thanks :)

@stepbystepscience 3 года назад

That's awesome. Glad it helped!

@jaredrossi5534 2 года назад

This was extremely helpful for my Electrotech VET course, Thank u heaps

@stepbystepscience 2 года назад

Glad it was helpful!

@aleyasimplelifestyle 3 года назад

Thank you for making this video.

@stepbystepscience 3 года назад

My pleasure, I love to make these videos!

@AACom-zb5cw 4 года назад

Really it was a wonderful class and I understand it. . Thank you so much for guiding. ..

@stepbystepscience 4 года назад

You're most welcome

@hindalmulla646 3 года назад

This was so helpful thank you so much for your help 😄💕💕

@stepbystepscience 3 года назад

Glad it was helpful! Thanks for taking the time to comment.

@Anna-bu2or Год назад

THANKYOU SM IM SOO GRATEFUL FOR THIS VIDD

@stepbystepscience Год назад

Thanks for subbing and glad to be of help!

@alaamahmoud7708 4 года назад

Now i understand. you are amazing 💞 thannkk youu.💙💙💙💙💙

@stepbystepscience 3 года назад

Happy to help!

@juanforero1634 3 года назад

Thank you, for you i understand very well

@stepbystepscience 3 года назад

Glad to hear that, you're welcome!

@bashayeralblooshi8167 2 года назад

THANK YOU, I got an A on my exam because of you!

@stepbystepscience 2 года назад

Fantastic, so glad to have helped!

@EVERY.CIRCUIT 3 года назад

Thank you so much , you are really creative person

@stepbystepscience 3 года назад

You're very welcome and thanks for the nice comment!

@princessm.5190 4 года назад

Thanks , because of this video I really understand my report today

@stepbystepscience 4 года назад

Great and thanks for the comment.

@miriamwanja4081 3 года назад

Can you imagine i have exams tomorrow and I'm too lazy to read😪

@stepbystepscience 3 года назад

Good luck!

@marinanjer4293 2 года назад

I'm in the same boat. I have one in 3 hours

@Salamanca-joro 2 месяца назад

I am in the same boat an exam one week later !!!!!!! I hate physics

@Sparky-vj2dq 5 лет назад

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?".

@sameehasabeer5822 4 года назад

nice sir and was very useful for my board examination preparations

@stepbystepscience 4 года назад

All the best, hope the examinations go well.

@bratyamon9185 5 лет назад

Really helpful

@stepbystepscience 5 лет назад

Thanks again

@omoiroko5640 2 года назад

Really good at teaching , I am understanding simply

@stepbystepscience 2 года назад

Excellent, glad to hear that!

@codettesorg5596 8 месяцев назад

Thank you great job

@stepbystepscience 8 месяцев назад

You're welcome and thanks for watching!

@ruandaluzjr4522 4 года назад

I like how you explain,

@stepbystepscience 4 года назад

I like how you comment.

@harry_D_seouja 3 года назад

Amazing teacher

@stepbystepscience 3 года назад

Thanks, glad you think so!

@harisalhamdi3073 4 года назад

It's really helpful

@stepbystepscience 4 года назад

Glad to hear that, thanks for the comment.

@almonzirmustafa6184 2 года назад

thank you for the explanation sir.

@stepbystepscience 2 года назад

You are welcome

@Shehlaowais 3 года назад

Thank you Please explain the A(area) by using pii diameter square. Relation between cross section area of wire and length.

@cd2773 3 года назад

Exam in half an hour thanks so much!

@stepbystepscience 3 года назад

Best of luck!

@cd2773 3 года назад

@@stepbystepscience I passed!

@stepbystepscience 3 года назад

@@cd2773 Great and thanks for letting me know.

@manasamamindla7407 3 года назад

Nice sir it's more helpful me in electronic subject thanks for make this video🌹🌹

@stepbystepscience 3 года назад

Most welcome and all the best!

@manasamamindla7407 3 года назад

@@stepbystepscience Ⓣ︎Ⓗ︎Ⓐ︎Ⓝ︎Ⓚ︎ Ⓨ︎Ⓞ︎Ⓤ︎ Ⓢ︎Ⓘ︎Ⓡ︎

@mathlearning2947 5 лет назад

great video

@stepbystepscience 5 лет назад

Thanks for commenting.

@chandrashekarshetty1039 3 года назад

Thanks a lot sir 🙏

@stepbystepscience 3 года назад

Most welcome!

@jjhan9836 5 лет назад

Thank you..hope you have the explanations of Vector as well.

@sathyamargam9545 3 года назад

Thanks sir

@stepbystepscience 3 года назад

You bet!

@venkatnandruvenkat7597 2 месяца назад

Thank you sir l have understand that. Resistance. Resistivity but. How. Is. It temperature dependence on a conductor

@stepbystepscience 2 месяца назад

As the temperature of a conductor increases the resistivity and the resistance also increase. The equation assume a constant temperature.

@valerieaw 3 года назад

thank you so much omgg

@stepbystepscience 3 года назад

Happy to help, thanks for the comment!

@rashmimishra9307 10 месяцев назад

Thank you sir ji 😊

@stepbystepscience 10 месяцев назад

Most welcome, all the best

@TheZMasterful 5 лет назад

keep it up

@stepbystepscience 5 лет назад

I'm trying, thanks for the encouragement.

@KortMateo 3 года назад

how did you use the scientific calc? idk how

@stepbystepscience 3 года назад

That would be hard to explain here, best to ask someone to show you on your calculator.

@MohamedMohamed-ib2ov 3 года назад

good staff

@stepbystepscience 3 года назад

Thanks!

@zhaadd 2 года назад

can you please cover harder questions on the same topic ..if you can great content

@stepbystepscience 2 года назад

Feel free to make a specific suggestion about the type of problems you'd like me to cover

@forgemientka3820 2 года назад

Will combining high resistance wires together end and end, but they aren’t touching in the middle reduce the resistance

@stepbystepscience 2 года назад

not sure what you mean..."but they aren't touching in the middle"?

@forgemientka3820 2 года назад

@@stepbystepscience lthey are coated along the wire except the ends which are all connected

@Cation_bibliophile 2 года назад

Tysm

@stepbystepscience 2 года назад

Welcome!

@sourovhasan7755 2 месяца назад

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?

@stepbystepscience 2 месяца назад

Use the equation to fire it out.

@angelofranklin1 3 года назад

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.

@stepbystepscience 3 года назад

Thank you very much! Appreciate the comment.

@11sk_capulongmikaelaannmay42 3 года назад

Thankkkyouuu

@stepbystepscience 3 года назад

You are very welcome.

@MohammadTotah 3 года назад

thank youuuuuuuuuuuuuuuuuuuuuuuuuuuu

@ashadash6066 Год назад

Plz can you solve the equation step-by-step

@KundanK121 4 года назад

What is the resistance of a healthy man

@stepbystepscience 4 года назад

Men are very resistant, health or not.

@venkatnandruvenkat7597 2 месяца назад

Please explain that conductor temperature

@stepbystepscience 2 месяца назад

@jasperdacutanan8885 3 года назад

pi r^2 is used when it is radius but this problem is in diameter so pi/4 and r^2

@gonzo1977 2 года назад

I don get the same resistence in the end???

@purplehazeto 2 года назад

how do you re arrange to solve for L in original equation of R=pL/a?

@MrDac87 2 года назад

L=RA/p

@purplehazeto 2 года назад

@@MrDac87 thank you!

@nourazzam3850 3 года назад

wow

@Knocked1x1 2 года назад

Are resistance and resistivity the same?

@stepbystepscience 2 года назад

@Knocked1x1 2 года назад

@@stepbystepscience thanks for answering. Btw that was a question on my quiz.

@AbhishekAbhishek-dz4ss 3 года назад

Sir how to take 10 power 3

@stepbystepscience 3 года назад

You should be able to do this on your calculator. They are all different so you may need to ask someone.

@cheoreyes949 3 года назад

Is r suppose to be 2.0 x 10^-3

@cheoreyes949 3 года назад

nevermind thanks for the clear explanation

@stepbystepscience 3 года назад

You are welcome.

@tamilselvi791 3 года назад

how to convert ohm square meter to ohm in impedance measurement

@artemisrosewood 3 года назад

if im not mistaken, you must divide it with 100²

@cyclops-knight1960 Год назад

i when i try to calculate for myself using your questions i geta completely different answer. im using a casino calculator btw

@stepbystepscience Год назад

Then you are probably not using the correct order of operations.

@ryanshahid3858 2 года назад

But temperature is also a factor of resistance

@stepbystepscience 2 года назад

Yes, but not for calculating resistivity.

@a.q6587 3 года назад

Isn't supposed the result to be 1.87×10^-5

@stepbystepscience 3 года назад

Good question, but I believe you forgot to square the radius for the area? Does that help?

@a.q6587 3 года назад

@@stepbystepscience oh yes thank you so much

@Chube5555 5 лет назад

Silicon is semiconductor

@stepbystepscience 5 лет назад

You are right!

@bhashithaburusu4899 3 года назад

Yehhh''

@bhashithaburusu4899 3 года назад

Germanium too

@niranjhannair606 2 года назад

i love you

@stepbystepscience 2 года назад

Awww, thanks!

@samarthkulkarni3457 4 года назад

Write the definition of resistivity

@kentryanmisolas513 3 года назад

This is so good thnxxx

@stepbystepscience 3 года назад

You're welcome. Glad you liked it!

@US-Warrior 3 года назад

I don't know how to put this into my calculator

@stepbystepscience 3 года назад

Then you need to ask someone to show you on your calculator.