An electric lamp rated 120W is used on a 240Vrms, calculate the resistance of its filament? by Sunday | May 20 | Physics WAEC | 0 comments A. 480Ω B. 360Ω C. 60Ω D. 2Ω Correct Answer: Option A A. 480Ω Users Also Read These:Calculate the resistance of the filament of a lamp…The wire of a platinum resistance thermometer has d…An immersion heater is rated 120W. How long does it…An electric bulb is rated 60W, 220V. Calculate the…A 120V; 60W lamp is to be operated on 220V A.C the…