Which of the following is NOT a determinant of conductor resistance?

Which of the following is NOT a determinant of conductor resistance?

• A. Insulation type
• B. Conductor material
• C. Diameter
• D. Length

Answer: (A)

The resistance of a conductor comes from how easily electrons move through the material and how long the path is. The intrinsic resistance is described by R = ρL/A, where ρ is the material’s resistivity, L is the length, and A is the cross-sectional area. The material determines resistivity, longer length increases resistance, and a larger diameter (cross-sectional area) lowers resistance. Insulation type doesn’t change these intrinsic factors; it mainly affects safety, voltage rating, and heat dissipation, not the conductor’s inherent resistance. So insulation type is not a determinant of conductor resistance.

The resistance of a conductor comes from how easily electrons move through the material and how long the path is. The intrinsic resistance is described by R = ρL/A, where ρ is the material’s resistivity, L is the length, and A is the cross-sectional area. The material determines resistivity, longer length increases resistance, and a larger diameter (cross-sectional area) lowers resistance. Insulation type doesn’t change these intrinsic factors; it mainly affects safety, voltage rating, and heat dissipation, not the conductor’s inherent resistance. So insulation type is not a determinant of conductor resistance.