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Why impure iron staright from the blast isn't much use than bendy?
steel
Why is light better than sound?
Better for what?
Why is solar power better than fossil fuels?
it is better than fossil fuels because it is better for our environment and it will last way longer than fossil fuels. :)
Air is a better insulator than fiberglass batting?
Fiberglass insulation is better than air, but closed cell foam is better.
Does white clothes reflect light?
Yes, better than colored and much better than black.
Why impure iron staright from the blast isn't much use than bendy?
steel
Why are LED flashlights better than halogen flashlights?
The LED bulb, which LED stands for Light Emitting Diode, does not have a filament and therefore lasts longer than a regular lightbulb.
Does a lamp with a thick filament draw more current or less current than a lamp with a thin filament?
A lamp with a thick filament will draw more current. What restricts the current flow in the filament is the resistance of the filament which increases as the temperature of the filament increases. A thin filament requires less energy to get heated up that a thick one so less current to achieve threshold resistance. Also a thick filament provides a broader path for current so there is less resistance per increase in degree centigrade. For these two (closely related but distinct) reasons it will require more current for the filament to get heated up to threshold resistance.
Why Led bulb are better than filament bulbs for maximum reduction in the consumption of electrical energy explain?
LEDs produce visible light and not heat. Filament bulbs use much of their energy to produce heat. The LED bulb produces more light per watt consumed.
Why gases are used in bulbs?
In incandescent bulbs, gases (other than oxygen) prolong the life of the filament. In florescent bulbs, the gas takes the place of the filament.
Does a lamp with a thick filament draw more or less current than a lamp with a thin filament?
A lamp with a thick filament will draw more current. What restricts the current flow in the filament is the resistance of the filament which increases as the temperature of the filament increases. A thin filament requires less energy to get heated up that a thick one so less current to achieve threshold resistance. Also a thick filament provides a broader path for current so there is less resistance per increase in degree centigrade. For these two (closely related but distinct) reasons it will require more current for the filament to get heated up to threshold resistance.
Why do lamp filaments age?
The high temperature causes a small amount of the metal in the filament to evaporate away. Over some time, the filament will develop a "hot spot" where it is thinner than the rest of the filament, which causes more rapid degradation and the filement will "blow".
Why is the filament thinner than the copper wire used in circuit wiring?
Filament is thiner than copper hence it dode offers very low resitstance to electric current flowing through it. Therefore heat energy generated with filament during current flow is converted to light. It is possible generate light with lesser power consumption . This lower power requirments is possible due to lesser specific resistance of filament compared to copper.
Is a light bulb filament as hot as lava?
The filament of an incandescent light bulb is actually significantly hotter than lava. Temperatures may exceed 4,000 degrees in some bulbs.
Is the brightness of a light bulb determined by its filaments?
Though there is a bit more to the story than this, yes, it is generally true that the brightness of a light bulb, sometimes called a lamp, is a function of its filaments. For a given voltage of operation, a less resistive filament will draw more current, run hotter and will glow more brightly (be more incandescent). A heavier, more resistive filament will draw less current, get less hot, and not produce as much light (be less incandescent). The former will run "hotter" as well as brighter, and the filament won't last as long, though it will be more efficient. The latter will not be quite as bright or as efficient, but the filament will have a longer operating life, and will probably be more shock resistant. Lamp filaments are usually made of tungsten, and these filaments are coiled to reduce evaporation of the metal when that metal is white hot. There is a "balance" engineered into the lamp to make it run "hotter" and more brightly to be more efficient, yet limit current somewhat, limit filament evaporation and extend the life of the lamp. Eventually, enough of the filament evaporates away in normal operation to create a "hot spot" that quickly degrades, and the filament fails. A link can be found below to learn more.
Why would the light go out where the mileage shows in a buick century 2002?
Due to the high temperature that a tungsten filament is operated at, some of the tungsten evaporates during use. Furthermore, since no light bulb is perfect, the filament does not evaporate evenly. Some spots will suffer greater evaporation and become thinner than the rest of the filament. These thin spots cause problems. Their electrical resistance is greater than that of average parts of the filament. Since the current is equal in all parts of the filament, more heat is generated where the filament is thinner. The thin parts also have less surface area to radiate heat away with. This "double whammy" causes the thin spots to have a higher temperature. Now that the thin spots are hotter, they evaporate more quickly. It becomes apparent that as soon as a part of the filament becomes significantly thinner than the rest of it, this situation compounds itself at increasing speed until a thin part of the filament either melts or becomes weak and breaks.
What would happen if the small intestine were just a straight tube rather than a coiled tube?
The digestion process will be difficult
