Consider four conducting materials copper, tungsten, mercury and aluminium with

Question:

Consider four conducting materials copper, tungsten, mercury and aluminium with resistivity $\rho_{\mathrm{C}}>\rho_{\mathrm{T}}>\rho_{\mathrm{M}}$ and $\rho_{\mathrm{A}}$ respectively.

Then:

 

  1. $\rho_{\mathrm{A}}>\rho_{\mathrm{T}}>\rho_{\mathrm{C}}$

  2. $\rho_{\mathrm{C}}>\rho_{\mathrm{A}}>\rho_{\mathrm{T}}$

  3. $\rho_{\mathrm{A}}>\rho_{\mathrm{M}}>\rho_{\mathrm{C}}$

  4. $\rho_{\mathrm{M}}>\rho_{\mathrm{A}}>\rho_{\mathrm{C}}$


Correct Option: , 4

Solution:

$\rho_{\mathrm{M}}>\rho_{\mathrm{A}}>\rho_{\mathrm{C}}$

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