If the electric current in a light bulb slowly increases then why does the filament glow get brighter?

As the electric current in a light bulb increases, more electrical energy is supplied to the filament, causing it to heat up. The filament, typically made of tungsten, has a property called resistance that converts electrical energy into heat and light. As the temperature of the filament rises, it emits more visible light, resulting in a brighter glow. This phenomenon is described by the relationship between temperature and light emission, where increased temperature leads to increased brightness.