A wire has resistivity 2.8 10^-8 Ω m, length 100 m and cross-section 2.5 10^-6 m^2. Its resistance is:

  1. 11.2 Ω
  2. 0.112 Ω
  3. 2.24 Ω
  4. 1.12 Ω
Answer

D) 1.12 Ω

R = rho LA = 1.12 Ω. SLO P-09-E-13 · Application

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