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In typical light bulbs, or incandescent bulbs, the resistance to the current directed through the filament causes the filament to heat up, thus radiating light. The glass bulb around the filament is vacuum sealed to remove oxygen, which would rapidly oxidize and destroy the super heated, ultra thin filament. there are variations of this technology in which the bulb is not a vacuum, but is instead filled with different gasses surrounding the filament, which allows the filament to burn even hotter, creating more light. fluorescent bulbs work by creating a reaction between Mercury vapor and phosphors. electric current excites the mercury atoms, which then release ultraviolet light. The ultraviolet light causes the phosphors to fluoresce, which creates light in our visible spectrum.
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What causes electrical energy to be transformed into heat and light energy as a current flows in a light bulb?
Eletric current
What will happen to the second light bulb if the first light bulb burns out?
the second bulb become weak because there's not a lot of energy being transformed into bulb 2
What energy transformation takes place in a flashlight?
Battery (chemical energy) goes to the wires (electrical energy) which goes to the light bulb (thermal and electromagnetic energy. In the bulb of a traditional flashlight, electric current energy is transformed to heat and then partially to light, when the temperature of the filament in the bulb is sufficient. In an LED type flashlight, little heat is produced and more of the electrical current energy is transformed into light.
What type of energy transformation occurs when a light bulb is turned on?
Electrical energy is transformed into heat and light. More specifically, electrical energy from the household wiring is turned into thermal energy (heat) by the filament which in turn becomes luminous energy (light). Some energy is lost due to resistance in the conductors.
What energy trasnformations occur in a incandescent light bulb?
In an incandescent light bulb, electrical energy is transformed into thermal energy and then into light energy. When electricity flows through the filament of the bulb, it heats up and becomes white-hot, producing thermal energy. This thermal energy then causes the filament to glow and emit light energy.
What transformations occur in a light bulb?
In a light bulb, electrical energy is transformed into light energy and heat energy.
What energy transformation occurs in a bulb?
In a light bulb, electrical energy is transformed into light energy and heat energy.
How do you know a light bulb transforms 100 percent of its electricity into light?
You don't. A light bulb transforms only a fraction of its energy into light, and most of it into heat. For an incandescent bulb about 3% is transformed into light, while for a compact fluorescent (low-energy light) about 15% is transformed into light.
What causes electrical energy to be transformed into heat and light energy as a current flows in a light bulb?
Eletric current
What will happen to the second light bulb if the first light bulb burns out?
the second bulb become weak because there's not a lot of energy being transformed into bulb 2
Only a small percentage of the electric energy fed into a light bulb is transformed into light what happens to the remaining energy?
It appears as heat
What energy transformation takes place in a flashlight?
Battery (chemical energy) goes to the wires (electrical energy) which goes to the light bulb (thermal and electromagnetic energy. In the bulb of a traditional flashlight, electric current energy is transformed to heat and then partially to light, when the temperature of the filament in the bulb is sufficient. In an LED type flashlight, little heat is produced and more of the electrical current energy is transformed into light.
How is electrical energy transformed to other forms of energy?
Energy transformed by the means of energy transformation.
What type of energy transformation occurs when a light bulb is turned on?
Electrical energy is transformed into heat and light. More specifically, electrical energy from the household wiring is turned into thermal energy (heat) by the filament which in turn becomes luminous energy (light). Some energy is lost due to resistance in the conductors.
What energy is being emitted from a flashlight?
The chemical energy stored in batteries gets transformed sets into electrical energy through the wires. This then gets transformed into light energy that you see.
What energy trasnformations occur in a incandescent light bulb?
In an incandescent light bulb, electrical energy is transformed into thermal energy and then into light energy. When electricity flows through the filament of the bulb, it heats up and becomes white-hot, producing thermal energy. This thermal energy then causes the filament to glow and emit light energy.
Only a small percentage of the electric energy going into a common light bulb is transformed into light what happens to the rest?
The rest is dissipated as heat.
