Incandescent bulbs are designed by keeping in mind that the resistance of their filament…
Physics · JEE Advanced · NTA Exams — Current Electricity
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 W, 60 W and 40 W bulbs have filament resistances R100, R60 and R40, respectively, the relation between these resistances is
100 W, 60 W and 40 W bulbs have filament resistances R100, R60 and R40, respectively, the relation between these resistances is
- R100 = R40 + R60
- R100 > R60 > R40
Answer
(D)
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