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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. |