1.

Four rods with different radii 'r' and length 'l' are used to connect to reservoirs of heat at different temperature. Which one of them with conduct most heat?

A. r = 1 cm, l = 1m
B. r = 2 cm, l =
C. r = 2 cm, l = 2m
D. r =
E. 37,500 kg
Answer» C.


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