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GATE Electrical 2014 Set 1 | Question: 29
An incandescent lamp is marked $40\:W, 240\: V$. If resistance at room temperature $(26^{\circ}C)$ is $120\:\Omega$, and temperature coefficient of resistance is $4.5\times 10^{-3} / ^{\circ}C$, then its $ON$ state filament temperature in $^{\circ}C$ is approximately _______

An incandescent lamp is marked $40\:W, 240\: V$. If resistance at room temperature $(26^{\circ}C)$ is $120\:\Omega$, and temperature coefficient of resistance is $4.5\tim...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Feb 11, 2017

Electric Circuits
gate2014-ee-1
incandescent
lamp
filament
numerical-answers

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