Question

Four cylindrical rods of different radii and lengths are used to connect two
reservoirs at fixed temperatures (y and t, respectively. From the following which
rod will conduct the maximum quantity of heat?
a) Rod of radius lcm and length 2m
b) Rod of radius 1cm and length Im
c) Rod of radius 2cm and length 5m
d) Rod of radius 3em and length 8m​

Answer 1

option A is correct

Hope this answer is helpful...