Atomic Energy Levels??

172819.jpgQ:When the electrons reach the collector, theyflow towards the positivly charged grid. The resulting current ismeasured. Note that as the electrons acceleratefrom the cathodetoward the grid, they collide with the mercury atoms. Assume thatthese collisions are completely elastic. How does the collectedcurrent vary ifthe Delta V_{grid} is slowly increased?

The current increases.
The current remains constant.
The current decreases.


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