The electrically conductive resin composition may contain matrix resin, coke powder, and carbon fiber. The volume mean particle diameter of the coke powder may be not less than 1 μm and not more than 500 μm. The content percentage of the coke powder in the electrically conductive resin composition may be not less than 1 wt % and not more than 60 wt %. The aspect ratio of the carbon fiber may be not less than 3 and not more than 1700. The content percentage of the carbon fiber in the electrically conductive resin composition may be not less than 0.5 wt % and not more than 10 wt %.