Recent content by olliebellamy

thanks so much, if that formula could have just been displayed for my knowledge in my revision guide, i would have had nothing to worry about. now i know the formula, i shalln't forget it,

no sense what so ever...i'm going to skip this section right now and move onto Work, power and energy...at least i can follow some simple formulae for this subject i'll just hope that i don't have to work out a coulomb in the exam...cos i really can't do it

can i not just have an answer to thie question from somebody? possibly with an explanation of how they came around with this answer?

OK - 4mA would be smaller than 1A. In that case i guess the charge would be greater

milli is 1/1000 - still I'm confused =[

4000? or 0.004?

in the revision guide i am using, there isn't any reference to the ampere with the Elecrtron Beam section. Just this question with no other information, except that : the charge on an electron is -1.6x10^-19C the book i am using is appauling -.-

Blooming forums went down, sorry for not replying. ok, I've re-looked at the question. i have no idea how to work out the answer. where do i start =P

Homework Statement A beam of electrons leaves an electrom gun. The current carried by the beam is 4mA. a) How many coulombs of charge pass through a certain point in the beam per second. b) How many electrons pass this point per second? Homework Equations KE(j) = Charge of electrons...