Jee Advanced
Current Electricity
IIT-JEE 2010 Paper 1 Offline
MCQ+3 / -12010
Incandescent bulbs are designed by keeping in mind that the resistance of their filament increases with the increase in temperature. If at room temperature, 100, 60 and 40 W bulbs have filament resistances R100, R60 and R40 respectively, the relation between these resistances is