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
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 -.-
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...