Heat Current, Temperature Gradient, Thermal Resistance & Conductivity Thermodynamics & Physics
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- เผยแพร่เมื่อ 24 พ.ย. 2017
- This physics video tutorial provides a basic introduction into heat current. It explains how to calculate the heat current flowing in a metal from a hot region to a cold region. The heat current is simply the rate at which heat energy is transferred. In addition, it explains how to calculate the temperature gradient and how to use it to find the steady state temperature any where between the hot and cold regions. Finally, this video explains how to calculate the thermal resistance given the length of the metal bar and the thermal conductivity. In addition, this video explains how to calculate the junction temperature between two dissimilar metals. This heat transfer video tutorial contains plenty of examples and practice problems.
Linear Expansion of Solids:
• Linear Expansion of So...
Temperature Conversions:
• Celsius to Fahrenheit ...
Thermal Stress and Strain:
• Thermal Stress and Str...
Heat Energy - Unit Conversions:
• Joules, Food Calories,...
Molar Heat Capacity:
• Molar Heat Capacity Pr...
Calorimetry Problems:
• How To Solve Basic Cal...
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Specific Heat Capacity Problems:
• Specific Heat Capacity...
Final Temperature Calorimetry Problems:
• Final Temperature Calo...
Latent Heat of Fusion and Vaporization:
• Latent Heat of Fusion ...
Conduction, Convection, and Radiation:
• Heat Transfer - Conduc...
Thermal Conductivity and Stefan Boltzmann's Law:
• Thermal Conductivity, ...
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Boyle's Law Practice Problems:
• Boyle's Law Practice P...
How Does a Bike Pump Work?
• How Does a Bike Pump W...
Charles Law:
• Charles' Law
Gay Lussac's Law:
• Gay Lussac's Law Pract...
Final Exams and Video Playlists:
www.video-tutor.net/
Physics PDF Worksheets:
www.video-tutor.net/physics-b...
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I love your way of teaching . Thank you man . I wish best. Keep it up
Exactly what I needed. Thanks!
I really wish u get more subscribers. Your way of teaching is amazing
Wonderful Heat Transfer lecture ! ! !
This is a gift for JEE students!!!
Physics Wallah OP 🔥🔥🔥
Thank you... this video is very useful.
Thanks for the video 👍
You saved my ass many times already. Thank you!!
Thank you sooo much loveyou
Thx
9:01 hey there i think thermal resistance is l/kA u forgot cross sectional area
Can someone tell me at 14:53 why and is it viable to consider the heat current equal for the both sides. I mean the length and temperatures are different but still can we consider them equal?
same question
Because of thermal equilibrium, in the end its still going to be equal
Thank you for the video and I have a question. Isn't the thermal resistance in this particular aluminium rod represented by the length divided by the thermal conductivity times the area(L/(k*A))? It does seem logical when the area gets bigger, the resistance becomes smaller. I learned that in school and wanted to check if it is right.
Ya but it seems to be x/kA. The opposite😳
For the first and second problems, it is not specified that it’s a steady-state conduction, as it would be more logical that the metals change temperature as there is a heat exchange between them. This was probably assumed, but it would be nice to have it explicitly said (the resolution was confusing without knowing that fact).
Why is A just .05 opposed to (Pie)R^2?
thermal resistance is x/ka?
Yes
Can someone explain why 160 is the steady state temp?
Hey bro I really wish to know about you what are you doing ? Is this is your full time job?
Yes this time it was good....but plz u can take it to a more difficult level...plz..
Hey thermal resistance =l/KA
In hindi
"Yeah lemme learn to speak a whole new language for you" fuck off. Google it in Hindi.
Physics Wallah OP 🔥🔥🔥