A current of 5 A is passing through a non-linear magnesium wire of cross-section $0.04 \mathrm{~m}^2$ . At every point the direction of current density is at an angle of $60^{\circ}$ with the unit vector of area of cross-section. The magnitude of electric field at every point of the conductor is :
(Resistivity of magnesium $\rho=44 \times 10^{-8} \Omega \mathrm{~m}$ )