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To provide sufficient resistance to electrons so that heat produced will cause thermionic emission.

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14y ago

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Why does the filament become hot?

The filament becomes hot when electricity passes through it, due to resistance in the wire. This resistance causes the filament to heat up and emit light in an incandescent bulb.


What is the hot filament protected by?

The hot filament in an incandescent light bulb is protected by a glass bulb filled with an inert gas, such as argon or nitrogen. This gas prevents the filament from reacting with oxygen in the air, allowing it to glow and produce light.


What is a filament Is it solved by using electricity terms?

A filament is part of a bulb.I will give you a full sentence. "The filament of a bulb is the part that gets hot and produces light"


How does a kettle filament heat all the water?

The filament or element gets hot and passes it's heat into the water.


What is a filament that glows white hot in electric light bulbs?

Tungsten is the filament used in electric light bulbs that glows white hot when subjected to an electric current.


What is the color of the filament if we turn the switch?

The filament will emit a white light when the switch is turned on.


What type of light glow when the filament get hot?

incandescent lights


What is the hypothesis to how does a light bulb work?

When a current is passed through a thin wire filament it gets hot. Insulate the filament in a glass envelope with no air, and the filament glows brightly.


What is something created when filament that becomes so hot it glows?

A light bulb is created when a filament becomes so hot that it glows. The high temperature causes the metal filament to emit light, which produces illumination in the bulb.


How it functions electric lamp?

An electric lamp, also known as a light bulb, functions by using electricity to heat a thin filament inside a glass bulb. As the filament heats up, it produces light. The bulb is filled with an inert gas to prevent the filament from oxidizing and burning out quickly. When the electricity flows through the filament, it causes the electrons to jump and emit photons, creating light.


What type of light build glows when a filament inside it gets hot?

Electric lamps having incandescent filaments.


What emits electrons in specific charge of electron experiment?

hot filament