High-quality audio amplifiers generate large amounts of heat. To dissipate the heat and prevent damage to the electronic components, heat-radiating metal fins are used. Would it be better to make these fins out of iron or aluminum? Why? (See Table 6.1 for specific heat capacities.)
a. Iron, due to higher specific heat capacity
b. Aluminum, due to higher thermal conductivity
c. Iron, due to lower thermal conductivity
d. Aluminum, due to higher specific heat capacity