Aluminum rod #1 is 1.0 m long with cross-section area 2.0 cm2. Aluminum rod #2 is 2.0 m long with cross-section area 4.0 cm2. Aluminum rod #3 is 3.0 m long with cross-section area 9.0 cm2. If each rod has the same temperature difference applied across its ends, which rod has the greatest rate of transfer of energy between its ends?
◦ #1
◦ #2
◦ #3
◦ #2 = #3, both greater than #1
◦ They each have the same rate.