,2 - 52.: w \"I" ' i...\" ; If}. 19. In an incandescent light bulb, the current runs through a thin tufgsten metal filament (3\" good conductor), which heats up to a temperature of 3200 F, a temperature at which it glows and emits light. The resistance of the filament at this temperature, compared to its resistance at room temperature, is A. The same Lower, because there are fewer charge carriers in the conduction band C. Lower, because stronger lattice vibrations of the metal help moving the electrons through / Higher, because there are more charge carriers in the conduction band / Higher, because stronger lattice vibrations in the metal impede the flow of the electrons