The electron drift speed is 20 104 ms in a metal with a mean

The electron drift speed is 2.0 10^-4 m/s in a metal with a mean free time between collisions of 5.6 10^-14 s. What is the electric field strength? In N/C

the electric field is calculated as follows:

E = vm/e = (2.0×10^4)(9.11x10^-31) / (5.6×10^14)(1.6x10^-19) = 2.033 x 10^-2 N/C