(a) What is the hot resistance of a 28.0 W light bulb with a

Last updated: 7/30/2022

(a) What is the hot resistance of a 28.0 W light bulb with a tungsten filament that runs on 120 V AC? (b) If the bulb's operating temperature is 2700°C, what is its resistance at 2590°C? The temperature coefficient of resistivity of tungsten is 4.50 x 10-3 °C-1.