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Question

Themal resistance $=\frac{\mathrm{L}}{\mathrm{KA}}=$ same for all $=\mathrm{R}(\mathrm{let})$ using kirchoff's law for heat current

$\mathrm{i}

Vedclass · Accepted Answer

$70$

Vedclass · Answer

Themal resistance $=\frac{\mathrm{L}}{\mathrm{KA}}=$ same for all $=\mathrm{R}(\mathrm{let})$ using kirchoff's law for heat current

$\mathrm{i}_{1}+\mathrm{i}_{2}+\mathrm{i}_{3}=0$

$\Rightarrow \frac{30-	heta}{R}+\frac{90-	heta}{R}+\frac{90-	heta}{R}=0$

$30-	heta+180-2 	heta=0 \Rightarrow 210=3 	heta \Rightarrow 	heta=70^{\circ} \mathrm{C}$

Three identical rods have been joined at a junction to make it a $Y$ shape structure. If two free ends are maintained at $90\,^oC$ and the third end is at $30\,^oC$ , then what is the junction temperature $\theta $ ?......... $^oC$

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