What type of light bulbs produce more heat: Incandescent light bulbs or fluorescent light bulbs
It is because of resistance offered by the element. Flow of electrons is current. these electrons colloid with atoms to produce the heat in incandescent light bulb.
The electrons moving through it go really fast and warm up, heating up the lightbulb.
Yes, exactly as billrussell42 says. My references say 97-99% of the power input to the bulb is converted to heat. Using lower wattage bulbs may not be the answer. If you were to use a 40W bulb it would produce less than 1/3 the light output of the 100W bulb, so you'd have to use 3 or 4 of them to equal the brightness that the 100W bulb gave you. Now you have 20-60% more heat being produced. A better choice would be to use CFL bulbs. Even better would be a flourescent tube, as these currently have the best light output for a given power input.
a light bulb connected in a closed circuit that has current running through it acts like a resistor. now...the power dissipated by this resistor is just the voltage across it times the current going through it. however, in the real world, not all the power dissipated to going to match the power supplied to it by the voltage source (provided that only the voltage source is connected in parallel with the light bulb) so does that mean that it violate the law of conservation of energy? of course not! in the real world (this world) some of the energy turning into, you guessed it!, thermal energy, aka heat aka joule heating...
