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 Homework Statement
 Plates have length 50cm, spacing 1cm, and P.D of 20V. Find minimum velocity of electron such that it just emerge from plates.
 Homework Equations

##F_{e}=qe##
##E=\frac{\triangle V}{\triangle d}##
F=ma
So I can understand how to find out velocity of electron moving between these 2 plates, by using:
##F=ma##
##a=\frac{F}{m} =\frac{qE}{m}##
##v^2=2as = \frac{2q}{m}Ex##
##v = \sqrt{\frac{2q}{m}Ex}##
where x = 0.01 , E =20 etc. Answer seems to be way too off, which is expected.
##a=\frac{F}{m} =\frac{qE}{m}##
##v^2=2as = \frac{2q}{m}Ex##
##v = \sqrt{\frac{2q}{m}Ex}##
where x = 0.01 , E =20 etc. Answer seems to be way too off, which is expected.