Current Electricity and Electrical InstrumentMedium
Question
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
Options
A.
B.R100 = R40 + R60
C.R100 > R40 > R60
D.
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