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Introducing the Idea (in Hindi)
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Pranav Pundarik is teaching live on Unacademy Plus

Pranav Pundarik
I teach exactly what you need🎯 Cleared NEET, AIIMS, JIPMER and JEE. Explore the courses, enjoy, understand and excel in Biology❤️

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in this question when resister was not insulated (1st phase of the question) why we can't use (delta S) resister = -Q/T hear heat is rejected that's why Q will become -ve ,,, IS NOT IT ?
hear also temperature made constant then, why we can't use this formula. (-Q/T) ?🤔🤔 why we are using the formula mcpln(T2/T1)
you can't use -Q/T for resistor Becoz resistor is a system(solid) for solid ∆s=m C ln(T2/T1).... and tell me if you are taking -Q/T for delta S (resistor) then what will be the surrounding's delta S
hear our system is resister Q (=i2rt) amount of heat comes from surrounding ,and by question temp of the resister made constant (that is not possible by adding heat from surrounding , after that also by the question demand it is made constant at 300 k ) then (delta s) system= Q/T and (delta s) surrounding=(that amount of heat comes to the surrounding)/(temp of surrounding) and by adding these qualities we will gate (delta s) universe Sir , is there any chance that I can send my photo copy of hand written language
this is difficult to write every symbol and confusion that happens to me at this comment box.
see the difference... resistor is a solid body , for resistor we need an input for getting an output.. In this case electrical energy causes Q to transfer to you can't use Q/T formula... Q/T formula is applicable for Infinite bodies .. Infinite body means either there is input or output like Source(Thermal reservoir) can provide heat continuously without any input to it and it's specific heat capacity is also infinite so for Infinite bodies we'll use ∆S= Q/T... Resistor is finite solid body where we need some input (in this case electrical energy) to get output.... so here ∆S = m C ln(T2/T1) will be used and T1=T2 so ∆S=0
thank you so much
thank you so much
Sir nowadays u became so talkative 😂😂😂😂😂😂😂😂just saying
Pranav Pundarik
a year ago
Hawwww aisa kab hua
I phone 10 बड़े लोग good utilization of plus money just saying🤕🤕🤒🤒🤒🤑🤑🤑🤑🤑🤑soon u will be the richest person in world
अमीर लोग
just kidding
Awesome course thank you so much 😊😊🤗🤗. Yes plz continue it & treat toh neet ke baad denge khud ko aur congratulations bolne ke liye toh aap ho hi neet ke baad😂😂😂
Pranav Pundarik
a year ago
Baaah 🤣
Neeti Lamba
a year ago
TA TA. Monika 😊😊
a year ago
Aneeta shuuu..🙄
Neeti Lamba
a year ago
Bhaiyya pakka continue kariye plz continue this course, this is real very much useful for everyone n thank you so mucchh for this course😃
bht late se join Kiya hum so sorry 😰, but ab khud ko congratulations bol rhe after joining your courses 😎 hehehe btwn thank you ☺️.
Pranav Pundarik
a year ago
Cell division aur plant reproduction k numericals sir plzzz

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