Calculate the resistance per unit length of a wire with diameter 0.4 mm and resistivity ρ = 4.7 × 10⁻⁵ Ω·m.
University of Ilorin PHY102 2025A past question
- 37.4 Ω/m
- 15.6 Ω/m
- 4.7 Ω/m
- 5.2 Ω/m
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