Question

Which of the following arrangements is correct on the basis of conductivity of materials?

• A. Silver $>$ copper $>$ aluminium $>$ tungsten
• B. Silver $>$ aluminium $>$ copper $>$ tungsten
• C. Copper $>$ silver $>$ tungsten $>$ aluminium
• D. Silver $>$ tungsten $>$ copper $>$ aluminium

Answer 1

Answer: (A)

Conductors	Resistivity $\rho (\Omega m)$ at $0^{\circ }C$
Silver	$1.6\times 10^{-8}$
Copper	$1.7\times 10^{-8}$
Aluminium	$2.7\times 10^{-8}$
Tungsten	$5.6\times 10^{-8}$

Conductivity $(\sigma )=\frac{1}{\text{ Resistivity }(\rho )}$