Which of the following is the most likely temperature of the filament of an electric ligth bulb when it is working on the normal 220 V supply line?

The resistance of the filament of a 110 W, 220 V electric bulb is ,

The temperature of the filament of an electric bulb is 2700^@C when it glows. It is not burnt up at such a high temperature. Why?

What is the resistance of the filament of a bulb, on which it is written '220V-100W'?

Calculate the electric power of an electric bulb of resistance 400 Omega connected to a 220 V supply.

(a) A 220V-100W bulb is connected to 110V source. Calculate the power consumed by the blub. (b) Calculate the following for a 100W - 200V bulb (i) Resistance of the filament of bulb (ii) Current through bulb when it is connected to 200V line (iii) Power consumed when bulb is connected to 100V line (c) An electric bulb rated 100W -200V is used in a circuit having 400V supply. what resistance R must be put in series with bulb so that bulb delivers 100W ? (d) Repeat the previous problem, if bulb delivers 25W . (e) Two bulbs, 50W-220V, 100W-200V are connected in series across a 220V supply. find the power consumed by each bulb.

A 220 V -60W electric bulb is connected in 220 V line . What is the resistance of the filament of the bulb , when it is tured on ?

The resistance of the filament of an electric bulb changes with temperature. If an electric bulb rated 220 volt and 100 watt is connected (220 xx 0.8) volt sources, then the actual power would be

The resistance of the filament of an electric bulb changes with temperature. If an electric bulb rated 220 volt and 100 watt is connected (220 xx 8) volt sources, then the actual power would be