A copper wire has n = 1 10^29 m^-3, cross-section 5 10^-7 m^2 and drift velocity 2 10^-4 m/s. The current is (e = 1.6 10^-19 C):

  1. 0.16 A
  2. 16 A
  3. 1.6 A
  4. 3.2 A
Answer

C) 1.6 A

I = nAvq = 1 10^29 5 10^-7 2 10^-4 1.6 10^-19 = 1.6 A. SLO P-09-E-10 · Application

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