Physics - Current Electricity Question with Solution | TestHub

Drift speed of electrons, when$1.5 \mathrm{A}$current flows in a copper wire of cross section$5 {\mathrm{mm}}^2$is$v_d.$If the electron density in copper is$9\times {10}^{28} {\mathrm{m}}^{-3}$the value of$v_d$in$\mathrm{mm} s^{-1}$is close to (Take charge of an electron to be$=1.6\times {10}^{-19} \mathrm{C}$)