Fluorescent tube lamp (FTL), in very simple words, produces light from excitation of atoms due to bombardments of electrons. A compact fluorescent lamp (CFL) is a coiled-shaped version of FTL.
http://upload.wikimedia.org/wikipedia/commons/3/31/06_Spiral_CFL_Bulb_2010-03-08_(white_back).jpg...
Thanks bandersnatch, that clear things a lot. But still I have a little bit more to ask. This is the complete paragraph from one of the textbooks I read:
One of the end-of-chapter exercises also stress again on that the conversion "loss of GPE of water ==> gain in KE of water (or turbine...
Thanks Drakkith.
Just to clear things up, the energy conversion is
(when turbine starting up) GPE of water ==> KE of water ==> KE of turbine ==> electrical energy
(when turbine running at steady speed) GPE of water ==> KE of water ==> work done against electromagnetic force ==> electrical...
(this is the first time I post. hope this is in the correct board)
So I want to know about how the internal energy of water has been converted into electrical energy when the turbine is rotating at a steady speed.
I have read several textbooks and they all give me several answers:
1. GPE of...