Four rods of same material with different radii $r$ and length $l$ are used to connect two reservoirs of heat at different temperatures. Which one will conduct most heat ?

r = 2 c m, l = 0.5 m

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

r = 2 c m, l = 2 m

No worries! We‘ve got your back. Try BYJU‘S free classes today!

r = 0.5 c m, l = 0.5 m

No worries! We‘ve got your back. Try BYJU‘S free classes today!

r = 1 c m, l = 1 m

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $r = 2 c m, l = 0.5 m$
according to given concept:
rate of heat transfer $\propto r^{2} \propto \frac{1}{l}$

Suggest Corrections

Similar questions

Q. Four rods of same material but different radii

r

and length

l

are used to connect two reservoirs of heat at different temperatures. Which one will conduct heat fastest?

Q. Four rods of same material but different radii

r

and length

l

are used to connect two reservoirs of heat at different temperatures. Which one will conduct heat fastest?

Q. Four rods with different radii

r

and length

l

are used to connect two heat reservoirs at different temperature. Which one will conduct most heat?

Q. Arrange the following rods of same material in an increasing order of rate of flow of heat when they have equal difference of temperature between their ends
a)

l = 2 m, r = 2 c m

l = 4 m, r = 2 c m

l = 2 m, r = 1 c m

l = 2 m, r = 4 c m

Four cylindrical rods of different radii and lengths are used to connect two heat reservoirs at fixed temperatures t₁ and t₂ respectively. From the following pick out the rod which will conduct the maximum quantity of heat:

Join BYJU'S Learning Program

Four rods of same material with different radii r and length l are used to connect two reservoirs of heat at different temperatures. Which one will conduct most heat ?

The correct option is A r=2cm,l=0.5maccording to given concept:rate of heat transfer ∝r2∝1l

Four rods of same material with different radii $r$ and length $l$ are used to connect two reservoirs of heat at different temperatures. Which one will conduct most heat ?

The correct option is A $r = 2 c m, l = 0.5 m$
according to given concept:
rate of heat transfer $\propto r^{2} \propto \frac{1}{l}$