Question

A copper wire has diametre 0.5 mm and resistivity of 1.6 × 10⁻⁸ Ω m. What will be the length of this wire to make its resistance 10Ω ?

• A. 142.7 m
• B. 152.7 m
• C. 122.7 m
• D. 112.7 m

Answer 1

Answer: (C)