A Small Bulb Is Rated at 7 $\alpha$ = 450 *10-3 $\degree$

Multiple Choice

A small bulb is rated at 7.50 W when operated at 125 V.The tungsten filament has a temperature coefficient of resistivity $\alpha$ = 4.50 *10-3 / $\degree$ C.When the filament is hot and glowing, its temperature is seven times room temperature (20 $\degree$ C) .What is the resistance of the filament (in ohms) at room temperature?

A) 234
B) 1350
C) 2080
D) 4530
E) 5630