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Consider the 6 idential rods as shown in figure, the conductivity of x is double that of y. The temperatre of the junciton B is

Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/30-304807" style="font-weight:bold;" target="_blank" title="Click to know more about 30">30</a>^(@)C`<br/>`40^(@)C`<br/>`50^(@)C`<br/>`20^(@)C`</p>Solution :(2) `K_(x) = 2 K, K_(y) = K` <br/> `R_(x) = R, R_(y) = 2 R` <br/> Let temperature of `B` is `theta`. <br/> Current will flow in the <a href="https://interviewquestions.tuteehub.com/tag/rod-1190628" style="font-weight:bold;" target="_blank" title="Click to know more about ROD">ROD</a> `DE` <br/> `i= (<a href="https://interviewquestions.tuteehub.com/tag/60-328817" style="font-weight:bold;" target="_blank" title="Click to know more about 60">60</a> - theta)/(R ) = (theta - 10)/((<a href="https://interviewquestions.tuteehub.com/tag/3r-311113" style="font-weight:bold;" target="_blank" title="Click to know more about 3R">3R</a>)/(2))` <br/> `180 - 3 theta = 2 theta - 20` <br/> `5 theta = <a href="https://interviewquestions.tuteehub.com/tag/200-288914" style="font-weight:bold;" target="_blank" title="Click to know more about 200">200</a>` <br/> `theta = 40^(@)C` <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/CPS_V01_C22_E01_030_S01.png" width="80%"/><br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/CPS_V01_C22_E01_030_S02.png" width="80%"/><br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/CPS_V01_C22_E01_030_S03.png" width="80%"/></body></html>


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