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A Light Bulb with a Tungsten Filament Is Attached to a Source

Question 69

Multiple Choice

A light bulb with a tungsten filament is attached to a source of variable voltage.As the voltage is increased on the bulb,


A) the bulb's resistance decreases.
B) the bulb's resistance increases.
C) the current in the bulb decreases.
D) the power dissipated remains constant.

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