Current Electricity 03 : Effect of Temperature on Resistance or Resistivity JEE MAINS/NEET

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Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App. Download the App from Google Playstore ( bit.ly/2SHIPW6 ) Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6 Physicswallah Website: physicswallahalakhpandey.com/ LAKSHYA Batch(2020-21) Join the Batch on Physicswallah App bit.ly/2SHIPW6 Registration Open!!!! What will you get in the Lakshya Batch? 1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey. 2)Live Classes and recorded Video Lectures (New, different from those on KZbin) 3)PDF Notes of each class. 4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level. 5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture. 6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021) 7)In case you missed a live class, you can see its recording. 8)You can view the videos any number of times. 9)Each chapter will be discussed in detail with all concepts and numericals 10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams. ****Test Series for XI & XII**** We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year. The test series follows very logical sequence of Basic to Advance questions.& Evaluation of Test and Solution to all the questions at the end of the test. ========================================================= For PDF Notes and best Assignments visit @ physicswallahalakhpandey.com/ Follow us on: Instagram instagram.com/physicswallah/ Facebook: facebook.com/physicswallah =========================================================== Class 12 chapter 3 : Current Electricity 01 : Electric Current and Drift Velocity JEE MAINS/NEET kzbin.info/www/bejne/f5Wkm5xpactqiqc Current Electricity 02 : Resistance - Defination , Origin and Numericals on R=pl/A JEE /NEET kzbin.info/www/bejne/ZmKydHpugLJkptU Current Electricity 03 : Effect of Temperature on Resistance or Resistivity JEE MAINS/NEET kzbin.info/www/bejne/hpbUk3Vti5dradk Current Electricity 04 : Colour Coding of Carbon Resistor I Boards Topic Colour coding of Resistance kzbin.info/www/bejne/h3rSiYyjm8RsqpY Current Electricity 05 : Ohm's Law (Scalar and Vector Form ) and Current Density JEE MAINS/NEET kzbin.info/www/bejne/qafFpptrqclop8k Current Electricity 06 : Combination of Resistors - Part 1 (Basics ) - JEE MAINS/NEET kzbin.info/www/bejne/Z6aTdnx9r9R7ra8 Current Electricity 07 : Combination Of Resistors - Part 2 ( Potential Method and Infinite Network) kzbin.info/www/bejne/ZnbRYZKAeqtkoLc Current Electricity 08 : Wheat Stone Bridge - Combination of Resistors - Part 3 JEE MAINS/NEET kzbin.info/www/bejne/fKWxc4pvjbZoqtk Current Electricity 09 : Symmetry Rule : Combination of Resistor -4 : Most Complex Circuits JEE/NEET kzbin.info/www/bejne/mYbLh31rpMtsZ5o Current Electricity 10 : Cells, EMF , Internal Resistance and Terminal Voltage JEE MAINS/NEET kzbin.info/www/bejne/nqnOdo14gMlmm6M Current Electricity 11: Kirchhoff's Law - Kirchhoff's Current Law & Kirchhoff's Voltage Law JEE/NEET kzbin.info/www/bejne/a3fGdqSbYqt0g8U Current Electricity 12 : Combination Of Cells -Series, Parallel and Mixed Grouping of Cells JEE/NEET kzbin.info/www/bejne/ponan6Gir81-iac Current Electricity 13 : Electrical Power and Energy I Which BULB Glows Brighter ?JEE/NEET kzbin.info/www/bejne/Z2XZaIGbjNCHfJo Current Electricity 14 : Meter Bridge - All Concepts with Previous year IIT Problems JEE/NEET kzbin.info/www/bejne/r6G7hXdonbWlj5o Current Electricity 15 : PotentioMeter :Measurement of EMF of Cell and internal resistance of Cell kzbin.info/www/bejne/aofKgmB_pZ56q9E Current Electricity 16 : Conversion Of Galvanometer to Ammeter & Voltmeter JEE /NEET kzbin.info/www/bejne/pnu9aGZ5h5eiiJo

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PDF Notes of this Lecture @ physicswallahalakhpandey.com/class-xii/physics-xii/current-electricity/

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Plz sir give gap minimum for 1 day for 1 video lacture

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To the world you may be just a teacher but to your students you are a hero

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Were a hero.

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No happiness during lecture?Why you watch then?

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47:38 It's 2 : 30 am in the morning, it was the end of the lecture and I gave up the question too and waiting for the solution but it seemed like sir specifically said that to me and I began solving it again, took me 10 minutes to solve but the satisfaction that I get can't be compared. Sir is not just a teacher but one who will make you do it yourself.

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22:40

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I tried it for 30 mins and still couldn't get it :'(( Will practice more questions

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Same I also solved

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RYT.....you know mujhe bilkul bhi nhi lga tha m es que ko kr paugii..aor na hi krne ka man tha...btt sir k bolne k bad...mne try kiya ...and i was shocked jb mne apna ans sir se match kiya... 🤩❣❣❤

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Me

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At 42:24 Short method...... t°c = [ (R at t°c - R at 0°c) ÷(R100°c- R0°c)] ×100 And this formula is valid for either resistance or pressure.... t°c= [(5.8-5)÷(5.5-5)] ×100 t°c= [0.8÷0.5]×100 t°c =160°c

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Rnot temp at 0degree or initial temp ????....help please.

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Mind blowing explanation with some jokes , full energy and motivation for study ❤️❤️❤️

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True❤

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Proud moment when Alakh sir is giving a lecture on not giving up on tough questions and you have just paused the video and completed the question

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Is comment par nahi sir ke video par...

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Acha

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Only for middle class???

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Being a physics teacher I must say he is the gem in the teaching world where teachers try to skip many things he makes sure he covers each and every minute details of the topic....hats off to him.

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Thanku so much Guruji 🙏

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Study is far better than movie or others when u have physics wallah sir 😍🙏🙏thank u sir

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🤗🤗

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How's life going now

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Alkh sir god for all poor students we are suport heartly to alkh sir❤

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i am fall in love physics bcoz of alkh sir thanks sir i want to meet you!

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RIP: ENGLISH 🔥

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39:15 Alakh sir did "khaby lame" move even before when it was popular.

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Aisa lagta hai ki sir live classes face to face padhhate hai kyoki Jo bhi bolte hai really vala jaise last 50.57 Mai bolte hai acha questions Mai give up kardete ho pura real sound karta hai hayy🥰🥰🥰🥰

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His dedication toward teaching us ...really motivate us to do hard work...OUR GREAT SIR ..thank u

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Notes: 06:38 12:52 14:23 19:06 23:26 30:51 35:09 39:23 44:48 50:33

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I get inspired by him..... His success is a kind of hope to every student to have faith in their hard work .... 😊

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Har lecture me sir ki energy maintain rahti hai. Sir Ko dekhte hi motivation aa jati hai. Sandeep Maheshwari is nothing in front of our sir

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Sir kamal krr diya aapne ek din me 3 video isi race se chale to syllabus khatam

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You are an angel for me literally. In this lockdown, When I don't understand live classes of my school, u r the with whom support , I m able to comeplete my chapters. Even a thank you is very small thing.

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Also watch this... short and straight kzbin.info/www/bejne/f4DEZmuuZ9SjnZI

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ARMY

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35:33 Q1 40:25 Q2 45:29 Q3

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At 30:57 - alakh sir sing - Mai dekhun Teri photo .. 100 ..100 baar ( sau sau ) kudi Me : Mai dekhun tera lecture ..👈😂 sau sau ( 💯. 💯) Baar kude ..🎶🎶😌

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Sir thanks for boosting my confidence As you said try last question this type of questions will make you selected I just tried and I got it

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ok that's kinda retarded

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Congrats sir is मैं 10 m like jayega👌👌👌 Videos is very helpful for🙏🙏 every one...

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Hmmm....the sounds 😉😉. Are....simply epic 😇😇zooömmmm.....dhaddhaddhad😘😘😘😝😝😛😜with lots of respect 👍👍🙏🏻🙏🏻

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Amazing teaching hub center in India in physics wallah...... Aaj tak free me aisa pdai nahi dekhi.

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You are a very great person sir🙏. Sir aap poor students ke liye God hai. Thank you so much sir🙏🙏🙏.

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Thank you sir when we study from others we just see how much time is left again and again but when u teach it's like a....... Disney World of physics........ Stay blessed Sir 💙💙💙💙

[@AmitKumar-ns7zw]

respected sir there are two formulae to determine temperature coefficient of resistance alpha= R2 -R1/R1(T2-T1) AND alpha=R2 -R1/R1T2-R2T1 both gives different values which and when formula should be used please explain

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sir please clear this doubt

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Depends on the question. Use R and Alpha accordingly

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And both answers are there in option 😭😭😭

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Amit kumar the first formula gives approximate value while the second formula gives more accurate answer

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From where 2nd formula came ??

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40:05 his eyes on 'be serious' 😂😂😂❤❤

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41:10 how to pause a video .. 😂😂😂😂😂😂😂 You are just awesome sir 💖❤️🤩

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Lots of respect from TAMIL NADU. We are blessed to have a great teacher like ALAKH SIR

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Lots of respect from INDONESIA SIR.......💖

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ha Yeh toh hai ek din me do vedios voh bhi itne pyaaar se maza hi aagaya

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i am watching this masterpiece in 2023 batch ❤❤❤❤✨✨✨✨ALAKH SIR

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Love from Odisha sir.....☺️☺️☺️ I don't like to see any others physics video after seeing your...I love ur way of teaching which is awesome👌👌 TQ so much sir for teaching n describing us so easily......

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The world best teacher😊😍

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9th 😱

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tumne laksya jee batch nhi liya hai kya ?

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Sir at 36.4 sec when u told thoda thoda karta hae thoda thoda nahi karta hae during that time I remembered dr.gulati😲always says like thoda thoda kar lo jiii😁😁😁😁😁😁😁😁

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Pysics wallah best ever best best best best, forever

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Thanks sir for your support and teaching like a friend 😄😄😄😄

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11:14 🤭 sir boli lagane lge.

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Complete my one day target... 3 videos done... Love u Sir.. May God bless u.. 🙏👍

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Complete my mrng target 😁 3 lecture done👍

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You are the great teacher who make my difficulties easy🙏🙏🙏🙏🙏

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Sir is summer break me ho sake to videos ki frequency badha dijiyega jis se maximum syllabus complete ho jaye

[@sumairakhan3428]

After watching alakh sir's lectures i am be like kya h physics lappu si physics h

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Sir is not only great teacher but also a great singer. 39:40

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My god alakh sir ka aur mera favourite song ek hi hai ....tum ho paas mere sath mere tu myu

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For others uh are alak sir..... But for you will be my back bone of my success 🏆💪

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Other KZbin teacher : focus on studies , always be motivated , 12th may aag laga day na 💯💯 Alakh sir : CHUHAA MAT KHANA !!!!!!!

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Attendence for batch 2025❤❤

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😊😊

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Sir u are the best teacher ever ..😘

[@eleenasubhradarsini4446]

Bina kahe hi Sab samjha dete ho ,sir tussi great ho,sir ji.

[@harkiratkaur4826]

Sir fir bhi apka intro kabhi skip karne ka mann nhi karta...enthusiasm bhar deta hai😊

[@kamtaprashad4047]

Pw is the best education centar in the wolrds

[@priyu_1920]

My parents enter only when sir sings song 😂

[@monumahawar7629]

Mujhe bhi sir ki singing pasand hai 😍😍😌😌☺

[@asedu951]

Hats off sir for your contribution in physics for teaching online because u help lakhs of students not one🙏🙏👍👍

[@ASHOKKUMAR-ry6cg]

1 ques ans 4 2 ques ans b I tried last ques pr galat ho gaya phir bhi..aap bahut motivate kr dete h sir..thanks a lot😇😊

[@kirtimalinisingh9496]

You are my only confidence really sirji ... appreciatable and lot of love and respect for only and only you from all the students who watches your lectures and learn many from you