Heat and Thermal ExpansionMedium

Question

Three rods of the same dimensions have thermal conductivities 3k, 2k and k. They are arranged as shown, with their ends at 100oC, 50oC and 0oC. The temperature of their junction is :-

Options

A.75oC
B. oC
C.40oC
D. oC

Solution

Let θ = junction temperature
Net heat current at junction  is zero
3k (100 - θ) + k (0 - θ) + 2k (50 - θ) = 0 ⇒ oC

Create a free account to view solution

View Solution Free
Topic: Heat and Thermal Expansion·Practice all Heat and Thermal Expansion questions

More Heat and Thermal Expansion Questions

Two identical glass bulbs are interconnected by a thin glass tube at 0oC A gas is filled at N.T.P in these bulb is place...Figure shows the expansion of a 2m long metal rod temperature. The volume expansion coefficient meta is :-...A glass rod measured with a zinc scale, both being at 30oC appears to be of length 100cm. If the scale shows correct rea...The fundamental interval, that is the number of division between LFP & UFP on the two scales X and Y are 50 and 150 resp...The figure shows a system of two concentric spheres of radii r1 and r2 and kept at temperatures T1 and T2 respectively. ...