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What is the difference between a 100watt and a 75 watt bulb?
The amount of light produced and the amount of power consumed. A watt is a unit of power and electrical power is determined using the formula: P = I2*R , Where P is power, I is amps and R is resistance. But using Ohm's law ( V = I * R) the following can be obtained: P = V2/R , Where V is voltage. In US house holds the standard voltage is ~120V, changing the resistance of the filament of the light bulb will change the amount of power consumed and therefore the amount of light produced. The higher the wattage the lower the resistance of the filament. Filaments are used in standard incandescent light bulbs and not in fluorescent tubes or LED fixtures.
How many lumens to equal a watt?
Incandescent bulbs: 10 lumens per watt Halogens: 13 lumens per watt CFLs: 50 lumens per watt A useful bulb to light a small room is 600 lumens, so that would need a 60-watt incandescent, or a 45-watt halogen, or a 12-watt CFL energy-saving bulb. The best CFL bulbs are the spiral ones.
How many lumens in a 40 watt hallogen?
That will vary on the manufacture and quality of the bulb. There is no set amount of lumens for a 40 watt halogen or any kind of bulb for that matter. To find out the lumen output you need to look at the box it came in as it should be stated. If you don't have the box it may be tricky to find out. You will have to see if you can find the manufacture somewhere on the bulb then google it and check the specs. It's probably safe to say its going to be around 500 lumens on average.
Which is the most correct definition of current. A the measure of electrical pressure B the amount of electricity used in a heater C the electricity used in heating a kilo of water D the pres?
A. The measure ofelectricalpressure.
Why we use resistance?
the resitance would be used to reduce a voltage amplitude to a level suitable to be used in an application, to limit the amount of current flowing within the circuit , or in some cases the resistor could be used as a heating - effect.
Do incandescent and fluorescent bulbs produce the same amount of heat?
No, incandescent bulbs produce more heat than fluorescent bulbs. Incandescent bulbs generate light by heating a filament, which also emits heat. Fluorescent bulbs produce less heat because they use electricity to excite gas inside the bulb, which then emits light.
What are the differences between incandescent and halogen lighting technologies?
The main differences between incandescent and halogen lighting technologies are the gases used inside the bulb and the filament material. Incandescent bulbs use inert gases like argon or nitrogen, while halogen bulbs use a small amount of halogen gas. Halogen bulbs also have a tungsten filament surrounded by a small amount of halogen gas, which allows the filament to last longer and operate at higher temperatures.
Which save more energy incandescent light bulbs or fluorescent?
Fluorescent light bulbs use less electricity for the amount of light produced.
Will a fluorescent light bulb burn brighter than an incandescent one?
Fluorescent light bulbs are typically more energy-efficient and produce more light for the same amount of power compared to incandescent bulbs. So, a fluorescent light bulb may appear brighter than an incandescent bulb with the same power rating.
Fluorescent light more energy efficient than incandescent light?
Yes, fluorescent lights are more energy-efficient than incandescent lights. Fluorescent lights use 25-35% of the energy that incandescent lights use to produce the same amount of light, making them more cost-effective and environmentally friendly.
Can halogen bulbs be used as replacements for 65W incandescent bulbs when needed to summon help scents in an emergency flasher circuit?
The halogen bulb needs 30% less power for the same amount of light, so a 45 w halogen replaces a 65 w normal incandescent.
What are the main differences between halogen and incandescent light bulbs in terms of energy efficiency and lifespan?
Halogen light bulbs are more energy-efficient and have a longer lifespan compared to incandescent light bulbs. Halogen bulbs use less energy to produce the same amount of light as incandescent bulbs, and they also last longer before needing to be replaced.
How efficient is a fluorescent bulb that emits the same amount of light as a 100w incandescent bulb?
It is about 5 times more efficient than the incandescent bulb, in other words for the same light a fluorescent uses one fifth the electric power.
What is the deference between incandescent and fluorescent lights?
An incandescent light uses electric current passing through a wire with a high resistance to current flow. That makes the wire very hot and it glows, producing the light. A fluorescent light uses electricity to charge a gas in a tube. The charged gas glows, producing the light. For the same amount of light, more electricity is needed in an incandescent light than in a fluorescent light, but developing and building fluorescent lights required more advanced technology than did incandescent lights.
Is Fluorescent lighting brighter than incandescent?
Fluorescent lighting typically produces more light output (brightness) while using less energy compared to incandescent lighting. This is due to the way fluorescent bulbs generate light through an electrical discharge rather than heating a filament.
What is the difference between incandescent bulbs and fluorescent bulbs Why change?
Incandescent bulbs produce light by heating a filament until it glows, while fluorescent bulbs produce light by passing an electric current through mercury vapor to create ultraviolet light, which then excites a phosphor coating on the bulb to produce visible light. Fluorescent bulbs are more energy-efficient and have a longer lifespan than incandescent bulbs, which is why many are switching to them for cost savings and environmental reasons.
One office building contains only incandescent lights The building next door contains only fluorescent lights Predict which building has higher energy bills Explain your answer?
The building with incandescent lights will likely have higher energy bills because incandescent lights are less energy-efficient than fluorescent lights. Fluorescent lights use less energy to produce the same amount of light, making them more cost-effective in the long run.
