question_answer

A current of 5 A passes through a copper conductor (resistivity\[=1.7\times {{10}^{-8}}\Omega m\]) of radius of cross-section 5 mm. Find the mobility of the charges if their drift velocity is \[=1.1\times {{10}^{-3}}m/s.\] [JEE Main 10-4-2019 Morning]

A) \[1.3\text{ }{{m}^{2}}/Vs\]

B) \[1.5\text{ }{{m}^{2}}/Vs\]

C) \[1.8\text{ }{{m}^{2}}/Vs\]

D) \[1.0\text{ }{{m}^{2}}/Vs\]

Correct Answer: D

Solution :

[d]