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A light bulb produces light and illuminates its surroundings through a process called incandescence. When electricity flows through the filament inside the bulb, it heats up and emits light. The filament is usually made of tungsten, which can withstand the high temperatures needed for light production. The light emitted from the filament spreads out in all directions, lighting up the area around the bulb.
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What happens when you flip a switch on a flashlight?
When you flip a switch on a flashlight, you complete an electrical circuit that allows a current to flow from the battery to the light bulb. This causes the light bulb to emit light and illuminate the surroundings.
How light energy is used in a flashlight?
In a flashlight, light energy is generated by converting electrical energy from the batteries into light through a light bulb or LED. The electrical energy causes the light bulb filament to heat up and emit light, or activates the semiconductor material in an LED to produce light. This light energy is then emitted out of the flashlight to illuminate the surroundings.
What happens if the filament breaks?
If the filament in a light bulb breaks, the circuit is interrupted and the light bulb will no longer illuminate. This is because the broken filament is unable to produce light when electricity flows through it.
When electrical energy is used by an electric light what really happens to the energy?
When electrical energy is used by an electric light, it is converted into light energy and heat energy. The electrical current passes through a filament or diode in the light bulb, causing it to heat up and produce light as a result of incandescence or electroluminescence. This conversion of electrical energy into light and heat allows the light bulb to illuminate its surroundings.
Who perfected the incandescent light bulb?
Thomas Alva Edison
