question_answer

What is the resistivity of copper, if the copper wire of length 3 m and area of cross-section is \[1.6\times {{10}^{-4}}{{m}^{2}}\] has a resistance of \[3\times {{10}^{-2}}\] Ohms?

A) \[1.4\times {{10}^{-6}}\] Ohm-metre

B) \[1.6\times {{10}^{-6}}\] Ohm-metre

C) \[1.6\times {{10}^{-4}}\] Ohm-metre

D) \[1.6\times {{10}^{-2}}\] Ohm-metre

E) None of these