The resistivity of a material is 1.7 x 10^-8 ohm-m. If a wire of this material has a length of 1 m and a cross-sectional area of 0.01 m^2, what is its resistance?
Q1. The resistivity of a material is 1.7 x 10^-8 ohm-m. If a wire of this material has a length of 1 m and a cross-sectional area of 0.01 m^2, what is its resistance?
Answer: 1.7 x 10^-6 ohm
Explanation: Using the formula R = ρL/A, we get R = (1.7 x 10^-8) * 1 / 0.01 = 1.7 x 10^-6 ohm. Option B is incorrect because it doesn't apply the formula correctly.