Use the data in the table given below and answer the following questions.
a. Which among iron and mercury is a better conductor?
b. Which material is the best conductor?
Use the data in the table given below and answer the following questions.
a. Which among iron and mercury is a better conductor?
b. Which material is the best conductor?

a. Iron is a better conductor than mercury because mercury’s resistivity is higher than that of iron.

b. Silver is the best conductor of all the materials included in the table because its resistivity is the lowest of all, \(1.60\times{{10}^{–8}}\).