Ask a Teacher



COULD YOU EXPLAIN THE FUNCTION OF A DISCHARGELAMP ?

In some discharge lamps, the work function of the
metal cathode is overcome by heating the electrons so they have enough thermal energy
to get out. The voltage difference across the plates then give these electrons a certain
amount of electrostatic potential energy. As always, energy must be conserved. Track
and explain the transfers and conversions between different forms of energy that occur
in a discharge lamp that make it work to produce light.


comments powered by Disqus