Physics, asked by khushisri6636, 8 months ago

40.
31. Find the resistance of a 240 V-200 W electric bulb when
glowing. If this resistance is 10 times the resistance
at 0°C and the temperature of the glowing filament
is 2000°C, then find the temperature coefficient of
resistance of the filament. Ans. 288.2, 4.5 x 10-3•c-1.

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