Physics Question urgently needed answering. the question is in the Details section.?

Physics Question urgently needed answering. the question is in the Details section.?



In a CRT (cathode ray tube), i read that certain factors affect the amount of electrons emitted from the negative electrode such as further heating the negative electrode among other means. my question is about another factor: does increasing the SURFACE AREA of the negative electrode increase the NUMBER OF ELECTRONS emitted from that electrode? if yes, is there a FORMULA that relates between the Surface area and the number of electrons emitted? Thank you.





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