RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

  • question_answer
    In a diode thermionic emission from cathode will be maximum when cathode has:

    A)  high work function, low temperature

    B)  high work function, high temperature

    C)  low work function, high temperature

    D)  low work function, low tern temperature

    Correct Answer: C

    Solution :

    Thermionic emission from cathode will be maximum, when work function of cathode is low and temperature is high.


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