The resistance of an incandescent lamp is

The resistance of an incadescent lamp is

Resistance of an incandescent filament of a bulb is comparatively much more than that when it is at room temperature. Why?

An electrical lamp os marked 240 V - 60 W . What is the resistance of the lamp on incandescent state ?

A 220 V - 60 W electric lamp os connected to 220 V supply line . Determine the resistance of the lamp in incandescent state .

Suppose you have to replace an incandescent lamp at your house. Following lamps are available. Incandescent lamp, CFL, LED, Fluroscent lamp Which of these lamps would you select ?Justify your selection.

What are the advantages of using discharge lamps instead of incandescent lamps ?

Incandescent lamp, discharge lamp , C.F.L, LED lamp, arc lamp are given for observation . Answer the following questions after observing them. Which metal is used to make filament of an incandescent lamp ? What are the advantages of using this metal as a filament ?

The resistance of the filament of a lamp increases with the increase in temperature. A lamp rated 100 W and 220 V is connected across 220 V power supply. If the voltage drops by 10% , then the power of the lamp will be