question_answer

If negligibly small current is passed through a wire of length 15 m and resistance of \[5\Omega \], having uniform cross section of \[6\times {{10}^{-7}}{{m}^{2}}\], then coefficient of resistivity of material is

A) \[1\times {{10}^{-7}}\Omega -m\]

B) \[2\times {{10}^{-7}}\Omega -m\]

C) \[3\times {{10}^{-7}}\Omega -m\]

D) \[4\times {{10}^{-7}}\Omega -m\]