Find current through the filament under these conditions

Reference no: EM13563073

When the tungsten filament in a 60 W, 120 V light bulb reaches 2010degrees C, 60 W of electric power is used to produce light andheat.

a) Find the current through the filament under these conditions which are established very shortly after the light isturned on.
b) Find the filament current when the light is first turned on,assuming an initial filament temperature of 19 degrees C.
c) Find the power used when the light is first turned on,assuming an initial filament temperature of 19 degrees C.
d) estimate the time needed to heat the filament to 2000degrees C. The filament has a msss of .038g and a specific heat of0.032 cal/g-C

Reference no: EM13563073

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