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Photoelectric question#2

  1. Dec 11, 2007 #1
    1. The problem statement, all variables and given/known data

    Why does the photoelectric current I not rise vertically up to its maximum value when the appled potential difference is slightly more positive that the stopping potential?

    2. Relevant equations
    3. The attempt at a solution

    Simply because,the speed of the photoelectrons also depend on the potential difference they are passing through[apart from the incident ray intensity].As they move their KE becomes converted into PE.As you vary the voltage,the current should vary accordingly...

    I do not find any more good reasoning behand this...Can anyone please check?
  2. jcsd
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