When electric current passes through the metallic filament (Tungsten) of an incandescent light bulb, it makes the filament so hot that it glows and emits light. Assuming that the light bulb is connected to a battery (constant voltage), what happens to the electric current as a function of time during the first few seconds after the light is turned ON? Briefly explain why? (a) it remains steady (does not change) (b) it decreases (c) it increases

When electric current passes through the metallic filament (Tungsten) of an incandescent light bulb, it makes the filament so hot that it glows and emits light. Assuming that the light bulb is connected to a battery (constant voltage), what happens to the electric current as a function of time during the first few seconds after the light is turned ON? Briefly explain why? (a) it remains steady (does not change) (b) it decreases (c) it increases