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Which kind a light bulb uses the least amount of energy a fluorescent lamp a halogen lamp a incandescent lamp or a heating lamp?
Wiki User
∙ 13y ago
Fluorescent lights use far less energy than any of the others listed.
Wiki User
∙ 13y ago
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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 and fluorescent bulbs do not produce the same amount of heat.
Which save more energy incandescent light bulbs or fluorescent?
Fluorescent light bulbs use less electricity for the amount of light produced.
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.
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.
What kind of light bulb gives off the most heat?
Incandescent bulbs produce the most heat for a given amount of light; fluorescent lights produce much less heat, and LED produces the least.
What is the difference between incandescent bulbs and fluorescent bulbs Why change?
Fluorescent bulbs use less energy to produce a similar amount of light as incandescent bulbs. So they save money on power when used. But they cost more to make, and how the power consumed to make them compares I do not know. And they contain a significant amount of mercury, making them difficult to dispose of properly. There is much debate over which is better.
Why cfl is widely used nowadays?
Compact fluorescent bulbs are widely used because they use one fifth of the electric power to provide the same amount of light as an incandescent bulb. Incandescent: 12 lumens per watt Halogen: 15 lumens per watt CFL: 50-60 lumens per watt LED: 100 lumens per watt High-pressure sodium: 200 lumens per watt
How much energy does an incandescent lightbulb use versus a fluorescent?
Yes that's true fluorescent bulbs are better because it usess 75% less energy and works longer than a incandescent light bulb. Yes...and no. It is true that power usage decreases with fluorescent balb usage. However, one must take into account that they pollute more (i.e. mercury and other heavy metals).
Can you dim compact fluorescent lamps?
Yes, compact fluorescent lamps can be dimmed. However it requires a dimming ballast which can be quite expensive and the amount of dimming is limited to about 20%. If you're thinking of using a dimmer you would be better off using an incandescent lamp.
Which bulb help us to reduce consumption of energy?
LED lightbulbs use the least power for a specified amount of light, followed by fluorescent light; the old-fashioned incandescent lights waste the greatest amount of power.
Are halogen bulbs more energy efficient than traditional incandescent bulbs?
Well, if they're both 40 watt bulbs they use the same amount of electricity. But incandescent bulbs produce a lot of heat as well as light. Fluorescent bulbs don't produce (much) heat, so they can use their power to produce light. So you can use fluorescent bulbs of lower wattage to produce the same amount of light.So for the same amount of light, fluorescent bulbs use less electricity than incandescent bulbs.
