Drift of Electrons and Current Density

2022 1 question

1. 1 Current Electricity Medium
   A copper wire of length 10 m and radius $(10^{-2}/\sqrt{\pi})$ m has electrical resistance of $10\ \Omega$. The current density in the wire for an electric field strength of $10\ V/m$ is :
   A $10^5\ A/m^2$ B $10^4\ A/m^2$ C $10^6\ A/m^2$ D $10^{-5}\ A/m^2$
   Check Answer