- #1
Ott Rovgeisha
- 76
- 5
Hi again.
We have two electric circuits. One is with a thin filament and the other has say 5 times larger filament.
It is clear that the 5 times thicker filament is 5 times more powerful: the energy dissipation from electrons to the atoms is 5 times faster, because the current is higher 5 times...
However, is it safe to say that the thick filament heats up more?
Yes, it's power is greater than that of the thin filament, but it also has more volume.
Yet we do see that 100 W incandescent bulb is brighter and hotter, and it DOES have a thicker filament than 20 W bulb.
Why is that? Does it have something to do with volume to surface area ratio?
Best regards...
We have two electric circuits. One is with a thin filament and the other has say 5 times larger filament.
It is clear that the 5 times thicker filament is 5 times more powerful: the energy dissipation from electrons to the atoms is 5 times faster, because the current is higher 5 times...
However, is it safe to say that the thick filament heats up more?
Yes, it's power is greater than that of the thin filament, but it also has more volume.
Yet we do see that 100 W incandescent bulb is brighter and hotter, and it DOES have a thicker filament than 20 W bulb.
Why is that? Does it have something to do with volume to surface area ratio?
Best regards...