Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Potential of a point charge

----- Original Message -----
From: "John Denker" <jsd@AV8N.COM>
That dr = -ds is always my stumbling block because most texts don't
really
spell it out. HR&K just jump from E dot ds to Edr.

Probably their limits of integration are swapped relative to yours.

No, actually my confusion was dumber than that. I looked at the picture
showing ds pointed towards the point charge and just mentally replaced it
with dr -- not thinking that pointed that way would make it -dr.

;-)

Rick