I'm trying to follow Feynman's explanation on page 26-10 of Volume 2 of The Feynman Lectures on Physics. He describes the electric and magnetic fields in a FoR S' moving between the plates of a condenser. Feynman writes that we see a reduced E and an added transverse B in S'. I've attached a copy of the figure in question. The transformation formula provided in the text is E' = γE, because B = 0 in S. My thinking is that, according to the formula, E' increases. This effect is also consistent with the S length contraction in S'. I am confused. Thank you.