How does electricity produced lighting?

Answer 1

Different kinds of light use different mechanisms. Currently, the technologies used include incandescent lights, fluorescent lights, and LEDs.

In an incandescent light (that's the most wasteful light), a current heats up a wire, until it glows.

In a fluorescent light, the current excites atoms, i.e., it raises electrons to a higher energy level. When the electrons fall back, they emit light.

I believe LEDs work on a similar principle, i.e., exciting the atoms; however, the material is solid instead of a gas.

Different kinds of light use different mechanisms. Currently, the technologies used include incandescent lights, fluorescent lights, and LEDs.

In an incandescent light (that's the most wasteful light), a current heats up a wire, until it glows.

In a fluorescent light, the current excites atoms, i.e., it raises electrons to a higher energy level. When the electrons fall back, they emit light.

I believe LEDs work on a similar principle, i.e., exciting the atoms; however, the material is solid instead of a gas.

Different kinds of light use different mechanisms. Currently, the technologies used include incandescent lights, fluorescent lights, and LEDs.

In an incandescent light (that's the most wasteful light), a current heats up a wire, until it glows.

In a fluorescent light, the current excites atoms, i.e., it raises electrons to a higher energy level. When the electrons fall back, they emit light.

I believe LEDs work on a similar principle, i.e., exciting the atoms; however, the material is solid instead of a gas.

Different kinds of light use different mechanisms. Currently, the technologies used include incandescent lights, fluorescent lights, and LEDs.

In an incandescent light (that's the most wasteful light), a current heats up a wire, until it glows.

In a fluorescent light, the current excites atoms, i.e., it raises electrons to a higher energy level. When the electrons fall back, they emit light.

I believe LEDs work on a similar principle, i.e., exciting the atoms; however, the material is solid instead of a gas.

Answer 2

Electricity is used to excite the atoms in a light bulb's filament, causing them to emit light as a result. When a current passes through the filament, it heats up due to resistance, producing light in the visible spectrum. This is how electricity is transformed into lighting for various applications.