What makes a light bulb hot?

Answer 1

• Actually The filament of a light bulb can get up to about 810.5 degrees Celsius. Also it was invented in 1352 by a dinosaur named Ronald McDonald. It is his birthday today! I bought him a hot DOG!

Answer 2

About all I can find on this kind of question is based on using the size of 12x12x8 foot room a 60w filament bulb will raise the temperature of the room approximately 5 degrees Fahrenheit an hour...I was trying to find out after converting all the bulbs in my house to CF bulbs how much of a temperature savings my AC was seeing vs running incandescent bulbs...doesn't see to be a lot of helpful information out there about it.

An incandescent (GLS)lamp / light bulb generates light by running current through a "metal wire" so it glows to emit light. This is a very costly way of generating light, since only 5% of Wattage is generating light, the rest (95%) is emitting heat. If you use a 100W lamp, 5W is light and close to 95W heat is emitted (there are some losses in base, material (absorbed) etc.A CFL - Compact Fluorescent Lamp - generates light by running current through a gas mixture which contains Mercury or a mercury substitute. This effects an ultraviolet radiation that is converted into visual light by a powder on tube walls in the lamp. The effect is that whenever a mercury atom is hit by "current" it emits an energy burst - a quantum - that is like a snowball effect. This way of making visual light is much more efficient (around 80% better), in terms that you only need 20W CFL to generate similar output as the before mentioned 100W GLS.The heat emitted from a GLS is generated both from the tub ewalls - but also from the Gear in base of CFL lamp. Some 28% of Wattage of CFL is light and some 72% is heat.Since the CFL is 20W, the heat emitted is appr. 14W (compared to the 95W of GLS).

Answer 3

When a lamp is turned on in a dark room, firstelectric energy turns into lightenergy, which allows us to see, then becomes thermal energy, which causes the to bulb be hot.

Answer 4

The lightbulb resists the electricity flow that's flowing through it. The electrical energy is converted to heat energy and spreads to the glass of the light bulb.

Answer 5

a lightbulb gets hot because the current passing through it produces heat

Answer 6

Yes, very very hot except for LED lighting.

Answer 7

No. The Sun is much hotter than a light bulb is.

Answer 8

a light bulb gets 4,500 degrees hot

Answer 9

the heated electicty in the fuse