answersLogoWhite

0

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

How did Humphrey Davy create a light bulb?

Humphry Davy did not create the light bulb. The modern incandescent light bulb was invented by Thomas Edison in the 19th century. Davy did make significant contributions to the field of electrical science and is known for inventing the miner's safety lamp.

What element is used inside light bulbs in the periodic table?

The element used in most light bulbs is tungsten, located on the periodic table with the symbol W and atomic number 74. Tungsten's high melting point and ability to emit bright light when heated make it ideal for light bulb filaments.

What is the gas that does not react at all and it is used in light bulbs so the metal in the light bulb can get very hot without burning?

The gas that does not react and is used in light bulbs is called argon. Argon is an inert gas that helps prevent the filament in the light bulb from oxidizing and burning out at high temperatures by creating a non-reactive environment inside the bulb.

Why is a light bulb warm?

A light bulb becomes warm because the electrical energy passing through it generates heat due to resistance in the filament or other components. This heat is emitted as infrared radiation, which gives the bulb its warmth.

When two light bulbs are connected in series the?

When two light bulbs are connected in series , there is voltage drop which causes the second lamp to dim

Answer

When two lamps are connected in series, neither lamp will be subject to its rated voltage and, so, each lamp will be dim. Surprisingly, perhaps, the lamp with the higher power will be dimmer than the lamp with the lower power!

Why Doesn't a lamp light up if the filament inside is broken?

If the filament inside a lamp is broken, it cannot conduct electricity properly, which is essential for generating light. The broken filament creates a gap in the circuit, preventing the flow of electricity needed to produce light. As a result, the lamp will not light up.

Why is a light bulb not on when a switch is not closed?

A closed switch completes the electrical circuit, allowing current to flow through the light bulb and generate light. If the switch is not closed, there is an open circuit, meaning the current cannot flow and the light bulb does not turn on.

Were there dificulties during the making of the light bulb?

Yes, there were many difficulties encountered during the making of the light bulb. Thomas Edison experimented with thousands of different materials for the filament before finding one that worked efficiently. He also faced challenges in designing a long-lasting and commercially viable light bulb.

What is the radius of light bulb?

The radius of a light bulb can vary depending on the type and size of the bulb. Standard incandescent bulbs typically have a radius of around 1 inch, while smaller bulbs like LED or compact fluorescent bulbs can have radii as small as 0.25 inches. Specialty bulbs or larger bulbs may have larger radii.

How Much Lumens in a 250 watt HPS Light Bulb?

A 250-watt HPS (High Pressure Sodium) bulb typically produces around 28,000 lumens at the initial phase of operation. However, this can decrease over time as the bulb ages.

Why is krypton used in light bulbs?

Krypton is used in certain types of incandescent light bulbs because it helps prolong the life of the filament inside the bulb by reducing its evaporation. This allows the bulb to emit light for a longer period of time before burning out.

How do electrons flow through a light bulb circuit?

Electrons flow from the negative terminal of the power source, through the wires of the circuit, into the light bulb. Within the light bulb, the electrons pass through the filament, creating heat and light as a result of resistance. Finally, the electrons exit the light bulb and return to the positive terminal of the power source to complete the circuit.

What is wattage of a light bulb?

The wattage of a light bulb indicates how much power it consumes. It is a measure of the bulb's energy usage, with higher wattage bulbs typically producing more light.

What happens when electricity flows through the filament in a light bulb?

When electricity flows through the filament in a light bulb, the filament becomes very hot and starts to emit light due to the process of incandescence. The electricity heats up the filament to a high temperature, causing it to glow and produce light.

How do you dispose of fluorescent tube light bulbs?

There are multiple options for disposal of this type of bulb. You can contact your local solid waste removal services to see what programs they have. Also available are recycling stations at most major sellers of these bulbs such as Lowe's, Home Depot, Wal-Mart, and K-mart. All of these retailers have recycling program to dispose of these bulbs properly and safely and most are free.

What will happen to the second light bulb if the first light bulb burns out?

the second bulb become weak because there's not a lot of energy being transformed into bulb 2

What element do you find in light bulbs?

Light bulbs contain a filament, typically made of tungsten, which produces light when electricity passes through it and heats up. This process causes the filament to emit light and illuminate the surroundings.

What is the filament made of today?

Filaments used in 3D printing today are typically made of thermoplastics such as PLA (polylactic acid) or ABS (acrylonitrile butadiene styrene). These materials are popular due to their ease of use, affordability, and versatility in a wide range of applications.

What are the little wires in a light bulb called?

The tiny wires in a light bulb are called filament wires. They are made of tungsten and are responsible for emitting light when an electric current passes through them.

What element make up light bulb filament?

The filament in a light bulb is typically made of tungsten, due to its high melting point and resistance to heat. Other materials, such as carbon or other metals, can also be used in some types of light bulbs.

How long did thomas edisons light bulb burn?

Thomas Edison's first successful light bulb lasted for about 13.5 hours when he first demonstrated it. However, he and his team later improved the design to last for over 1500 hours.

What are the 2 gases in light bulb?

The two gases commonly used in incandescent light bulbs are argon and nitrogen. The gases help prevent the filament inside the bulb from oxidizing at high temperatures, prolonging the bulb's lifespan.

Why does a light bulb give off radiation?

A light bulb gives off radiation in the form of light when the filament inside it heats up to a high temperature, causing it to glow and emit electromagnetic radiation in the visible spectrum. This radiation is what we perceive as light.

How is nitrogen used in light bulbs?

Nitrogen is used in light bulbs as a filler gas to displace oxygen and prevent the filament from oxidizing at high temperatures. This helps prolong the life of the filament and improves the efficiency of the bulb.

Why is the filament inside a wire coiled?

The coiled filament in a wire increases the resistance, which in turn increases the amount of heat produced when an electric current passes through it. This enables the wire to function as a heating element in appliances like toasters and ovens.