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# Use the data in Table 12.2 (in NCERT Book on Page No. 207) to answer the following : (i) Which among iron and mercury is a better conductor ? (ii) Which material is the best conductor ?

(i) Resistivity of iron = $$10.0$$x $$10^{-8} \Omega m$$
Resistivity of mercury =$$94.0$$ x $$10^{-8} \Omega m$$.
(ii) silver has the lowest resistivity ($$1.60$$ x $$10^{-8} \Omega m$$), therefore silver is the best conductor.