Incandescent bulbs are designed by keepi...

Incandescent bulbs are designed by keeping in mind that the resistance of their filament increases with the increase in temperature. If at room temperature, `100W, 60W and 40W` bulbs have filament resistances `R_(100), R_(60) and R_(40)`, respectively, the relation between these resistances is

Similar Questions

Explore conceptually related problems

An electric bulb is labelled 40W, 200V. What is the resistance of the filament?

An elecric bulb is marked 100w 250 Volt. Find the resistance of the filament inside the bulb

A bulb of power 40W is designed to öperate at 240V. Calculate resistance of the filament in the bulb.

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

Two bulbs are marked 100W and 60W. What is the ratio of the resistance of their coils ?

Two bulbs are marked 60 W and 40 W . What is the ratio of the resistance of their coils.

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

Two bulbs are having the ratings as 60 W, 220 V and 40 W, 220 V respectively. Which one has a greater resistance?