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Light Bulbs and Artificial Lighting
Artificial lighting has become standard in the homes and companies of most countries. It is used for concert effects, growing food, and reading a book in bed at night.
2,482 Questions
What property of argon is used In a light bulb?
Argon's property of being inert (chemically non-reactive) is used in a light bulb. It prevents the filament from evaporating by creating a stable environment inside the bulb, allowing the filament to glow brightly and last longer.
Why is tungsten often used as the filament in light bulb?
Tungsten is used as the filament in light bulbs because it has a very high melting point, allowing it to withstand the high temperatures generated when electricity flows through it, producing light efficiently. Additionally, tungsten is a very durable material, which contributes to the longevity of the light bulb.
Will a circuit with two light bulbs in series light up?
Yes, a circuit with two light bulbs connected in series can light up. Current flows through the first light bulb, then through the second, allowing both bulbs to illuminate. If one bulb burns out, however, both bulbs will go out.
Can you use a night light bulb in a clothes dryer?
No, it is not safe to use a night light bulb in a clothes dryer because the high heat and vibrations can cause the bulb to shatter or malfunction. It's important to only use light bulbs that are specifically designed for use in appliances like dryers to prevent any accidents or damage.
What noble gas is used in light bulbs and photographs?
The noble gas used in light bulbs and photographs is argon. Argon is used in light bulbs to prevent filament degradation and in photographs to create a stable environment for preserving prints and negatives.
No, a light bulb is not a conductor. A light bulb is made of materials that act as insulators, such as glass and tungsten. The filament inside the light bulb serves as a resistor to generate light when electricity passes through it.
What happens when light interacts with a translucent material?
When light interacts with a translucent material, it is partially absorbed, scattered, and transmitted through the material. The material allows some light to pass through, creating a diffuse glow or soft illumination. The material also causes the light to be dispersed and weakened as it passes through, resulting in a blurred or obscured image.
Who perfected the incandescent lightulb?
Thomas Edison is credited with perfecting the incandescent light bulb in 1879. He developed a long-lasting, practical light bulb that could be used for indoor lighting.
The gas commonly used in tube bulbs is neon. Neon emits a bright, colorful light when an electrical current passes through it, making it popular for use in signs and displays.
What happens to the other bulb if one bulb burns out?
If one bulb burns out in a series circuit, the other bulb will also turn off since there is no longer a complete path for the current to flow. In a parallel circuit, the other bulb will continue to function normally as each bulb has its own separate path for the current to flow.
Steps of the making of the electric light bulb?
- Develop a filament material that emits light when an electric current passes through it.
- Seal the filament inside a glass bulb filled with an inert gas to prevent it from burning out.
- Connect the filament to an electrical power source with a properly designed socket.
- Test the bulb for efficiency, longevity, and safety before mass production and distribution.
How does inert gas do on a light bulb?
Inert gas, such as argon or krypton, is used in light bulbs to fill the space around the filament. This helps prevent the filament from oxidizing and burning out quickly. Inert gas also helps to reduce heat loss, allowing the filament to operate at a higher temperature, which in turn produces brighter light.
Does an incandescent bulb produce more heat than a fluorescent bulb?
Yes, because incandescent bulbs uses a resistive element which glows up to give out light. The force which opposes the flow of current through the filament wire causes more heat to be produced by the bulb.
In the fluorescent bulb, noble gases are used and because these do not react to any force, less heat is produced. Though some amount of heat is produced by the end electrodes of the bulb.
ANSWER: An incandescent bulb uses electricity to light the filament. Heat is the result. In a fluorescent light, argon and mercury are excited by an electrical charge and the result is light. The light is the same as a black light and if the bulb was not coated with phosphorus, white light would not be visible.
Which transition metal is used in light bulbs as a filament?
Tungsten is the transition metal commonly used in light bulbs as a filament. It has a high melting point and is able to withstand the high temperatures generated by the electric current passing through it, making it ideal for producing light.
How many light bulbs were in use at 1902?
It is difficult to determine the exact number of light bulbs in use in 1902 as there is no comprehensive record. However, it is estimated that the number of electric light bulbs in use around the world at that time was in the millions, as electric lighting was becoming more popular.
Why is tungsten used to create light in incandescent light bulbs?
Tungsten is used in incandescent light bulbs because it has a high melting point and is able to withstand the high temperatures generated when electricity passes through it, causing it to glow and produce light. Tungsten is also a good conductor of electricity, allowing the bulb to efficiently convert electrical energy into light.
In the sliding filament mechanism the thin filament is being pulled toward the?
M-line, causing overlap with the thick filament during muscle contraction. This results in the sarcomere shortening and overall muscle contraction.
What kind of material lines the tubes of fluorescent lights and glows when exposed to UV light?
Phosphor is the material that lines the tubes of fluorescent lights and glows when exposed to UV light. This material emits visible light when excited by ultraviolet radiation.
Is the light bulb still used today?
Yes, light bulbs are still in use today, although there has been a shift towards more energy-efficient options like LED bulbs. Traditional incandescent light bulbs are being phased out in many places due to their lower efficiency and shorter lifespan.
Why do light have to have electricity to work?
Light requires electricity to work because electricity provides the energy needed to excite the electrons in the atoms of the light source. When the electrons return to their original state, they release energy in the form of light. This process allows light to be emitted from the source.
How does a compact fluorescent bulb convert electricity into light?
A compact fluorescent bulb uses electricity to create an electrical current that passes through a tube containing argon and a small amount of mercury vapor. This current excites the mercury atoms, causing them to emit ultraviolet light. The UV light then hits the phosphor coating inside the bulb, which converts it into visible light.
Why is salt water able to light a bulb?
Salt water is able to light a bulb because it conducts electricity. When a voltage is applied across the salt water, the ions from the dissolved salt allow electric current to flow, completing the circuit and allowing the bulb to light up.
Did Benjamin Fraklin invented the light bulb?
No, Benjamin Franklin did not invent the light bulb. The light bulb was actually invented by Thomas Edison in the 19th century. Benjamin Franklin is known for his contributions to electricity and the invention of the lightning rod.
Why not to squeeze the rubber bulb too much?
Squeezing the rubber bulb too much can cause excess pressure to build up, potentially damaging the equipment or causing leaks. It is important to follow the manufacturer's guidelines for safe and proper use to avoid any issues. Over-squeezing the bulb can also lead to discomfort or injury for the user.
What metal tungsten is used in incandescent light bulbs because of its property of?
Tungsten is used in incandescent light bulbs due to its high melting point and ability to emit bright, white light when heated. It has a low rate of evaporation, allowing the filament to last longer and maintain its shape while producing light.
