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A light bulb is a source of electric light.
In an incandescent light bulb, the glass bulb forms a protective shield around a glowing filament.
The air inside the glass bulb is removed, or replaced with an inert gas.
Electric current is passed through a thin metal filament (usually tungsten), which causes it to glow white hot, giving out light.
The protective bulb stops the filament from burning up, as it has no Oxygen.
What else can I help you with?
Is the glowing of bulb an irreversible change?
No, the glowing of a light bulb is a reversible change because it can be turned off by disconnecting the power source. The light bulb will stop glowing once the electrical current is interrupted.
Can an apple power a light bulb?
No, an apple does not contain enough energy to power a light bulb. A light bulb requires electricity to produce light, which usually comes from a power source such as batteries, generators, or electrical outlets. The energy stored in an apple is not enough to produce the amount of electricity needed to power a light bulb.
What does the electrical foot contact do in a light bulb?
The electrical foot contact in a light bulb serves as a connection point for the electrical current to flow into the bulb. It ensures that the electrical circuit is completed when the bulb is screwed into a socket, allowing the filament or LED components to illuminate. This contact is essential for the bulb's operation, enabling it to produce light when powered.
What causes the bulb to light in a closed circuit?
In a closed circuit, electrical current flows from the power source through the wires, through the bulb, and back to the power source. When the current reaches the filament inside the bulb, it heats up and emits light, causing the bulb to light up.
What energy changes take place when a light switch is turned on?
mechanical to electrical to light energy
Is a light bulb an energy source?
No.it uses energy sources (electrical energy to light up
Is a bulb a source of energy?
No, a bulb is not a source of energy. A bulb simply converts electrical energy into light energy. The electrical energy is usually provided by a power source, such as a battery or a power outlet.
Is a light bulb a source?
No.it uses energy sources (electrical energy to light up
To light up a light bulb we need to connect to a?
To light a light bulb you need to connect to a source of electricity like a battery or an electrical outlet.
If someone takes a aluminum can and attach a light bulb to it will it light up?
No, there needs to be an electrical source
Is a bulb a light source?
No.it uses energy sources (electrical energy to light up
What happens to electrical energy when a light bulb lights?
It goes back to that source
Will the light bulb light up if you connect a wire to it?
No, a light bulb needs a closed circuit with a power source, such as a battery or electrical outlet, in order to light up. Simply connecting a wire to a light bulb without a power source will not allow it to light up.
What energy source does a light bulb use?
A light bulb uses electricity as its source of energy.A light bulb to uses electrical energy which is supplied to a resistor that gives off heat as well as light. The resistor is a thin coiled piece of wire made of Tungsten because it has the highest melting point of any metal.For more information see the answer to the Related question shown below.
Is a light bulb a source of an electric current?
No. The term SOURCE means that it is a supply of electrical energy, and a light bulb does not supply electricity, it uses it. A battery, generator, fuel cell, or solar cell would be a source.
What are the minimum requirements in order to light the bulb?
To light a bulb, you typically need a power source (such as a battery or electrical outlet), a conductive material to connect the bulb to the power source (such as wires), and a functioning bulb itself. When these components are properly connected and the power is supplied, the bulb should light up.
What is the job of a light bulb?
The job of a light bulb is to convert electrical energy into visible light energy. (Not ALL of the electrical energy a bulb uses is converted to light energy. Their efficiency is quite low. An incandescent light bulb is more efficient as a heater than as a source of visible light. Fortunately, our eyes are very sensitive.)
