There are electrons in the filament of the ac lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes from A) the positive charges that flow in the filament.B) the same electrons.C) different electrons; the ones that flow in the circuit to your lamp
B. The same electrons.
The glowing in an AC lamp comes from the movement of electrons within the filament. When you turn on the lamp, an electric current flows through the circuit, which includes the filament. The filament is a long, thin wire made of a material that has a high resistance to the flow of electric current.
When the current passes through the filament, it encounters resistance and experiences a "collision" with the atoms within the filament material. As a result, the electrons in the current slow down and release some of their energy in the form of heat and light. This released energy causes the filament to glow.
So, the glowing in an AC lamp comes from the same electrons that flow in the filament. The electrons themselves do not actually leave the filament to produce the light; rather, their movement and collision within the filament produce the glow. Therefore, the correct answer is B) the same electrons.