A wall is oftwo layers P and Q eachmade of different material . Boththe layers have same thickness . Thetemperature difference between the wall is 36^(@)C. What is the temperature difference acrossthe layer P ?

A wall is oftwo layers P and Q eachmade of different material . Bothth

1.	A wall is oftwo layers P and Q eachmade of different material . Boththe layers have same thickness . Thetemperature difference between the wall is 36^(@)C. What is the temperature difference acrossthe layer P ?
Answer» <html><body><p><<a href="https://interviewquestions.tuteehub.com/tag/p-588962" style="font-weight:bold;" target="_blank" title="Click to know more about P">P</a>></p>Solution :For <a href="https://interviewquestions.tuteehub.com/tag/layer-1069875" style="font-weight:bold;" target="_blank" title="Click to know more about LAYER">LAYER</a> P , `A = A_(1), l = l_(1) , K = k_(1)`<br/>For layer <a href="https://interviewquestions.tuteehub.com/tag/q-609558" style="font-weight:bold;" target="_blank" title="Click to know more about Q">Q</a> , `A = A_(2) , l = l_(2), K = k_(2)` <br/>Given`l_(1)= l_(2),A_(1) = A_(2) , K_(1) = 2K_(2)` <br/> Let`theta` be <a href="https://interviewquestions.tuteehub.com/tag/thetemperatureat-3206935" style="font-weight:bold;" target="_blank" title="Click to know more about THETEMPERATUREAT">THETEMPERATUREAT</a> the junction two layers and `theta_(1), theta_(2)` are the temperatureat the endfaces of P and Q . <br/> Given`theta_(1) = theta_(2) = 36^(@)C` <br/>under thermal euqilibrium `(Q)/(t) = (k_(1)a_(1)(theta_(1) = theta))/(l_(1)) = (k_(2)A_(2) (theta - theta_(2)))/(l_(2))`</body></html>