Test Phys 2426 lili IU Part 1 06 point for each question on

Test Phys. 2426 (lili IU Part 1: (0.6 point for each question) on: the substance 1. For an ohmic substance, the resistivity depends electrons in the motion of the A. the electric field E. the length of the sample B. the potential difference C. the current

Solution

Resistivity is inverse of conductivity and conductivity depends on drift velocity. Drift velocity depends on electron mean free time. So resistivity of ohmic substance depends on mean free time i.e the motion of the electron in the substance. So Option D is correct option.