A current of 5 A flows in a wire with n = 8.5 10^28 m^-3 and area 3 10^-6 m^2. The drift velocity of the electrons is:

  1. 1.23 10^-4 m/s
  2. 2.45 10^-4 m/s
  3. 0.00123 m/s
  4. 1.23 10^-5 m/s
Answer

A) 1.23 10^-4 m/s

v = InAq = 1.23 10^-4 m/s — very slow. SLO P-09-E-10 · Application

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