The source of electrons lighting an incandescent ac light bulb is
A)the power company.
B)the electric outlet.
C)atoms in the light-bulb filament.
D)the wire leading to the lamp.
E)the source voltage.

Question

Quizplus · Accepted Answer

The source of electrons lighting an incandescent ac light bulb is atoms in the light-bulb filament. The filament is made of a material that has a high resistance to current flow, causing it to heat up and emit light when electricity passes through it. The electrons come from the filament itself, not the power source or outlet.

The Source of Electrons Lighting an Incandescent Ac Light Bulb