most of the sun's energy is produced in the core region.
where is most of the sun's energy produced?
in the core region
most of the energy produced at vega's core is generated by the carbon–nitrogen–oxygen cycle (cno cycle), a nuclear fusion process that combines protons to form helium nuclei through intermediary nuclei of carbon, nitrogen, and oxygen. this process becomes dominant at a temperature of about 17 million k, which is slightly higher than the core temperature of the sun, but is less efficient than the sun's proton-proton chain reaction fusion reaction. the cno cycle is highly temperature sensitive, which results in a convection zone about the core that evenly distributes the 'ash' from the fusion reaction within the core region. the overlying atmosphere is in radiative equilibrium. this is in contrast to the sun, which has a radiation zone centered on the core with an overlying convection zone.
vega
sources of electrical energy





















































section::::overview.





















































this article provides information on the following six methods of producing electricity.





















































bullet::::1. friction: energy produced by rubbing two material together.





















































bullet::::2. heat: energy produced by heating the junction where two unlike metals are joined.





















































bullet::::3. light: energy produced by light being absorbed by photoelectric cells.





















































bullet::::4. chemical: energy produced by chemical reaction in a voltaic cell.





















































bullet::::5. pressure: energy produced by compressing or decompressing specific crystals.





















































bullet::::6. magnetism: energy produced in a conductor that cuts or is cut by magnetic lines of force.





















































section::::friction.
sources of electrical energy