What was the first electrical machine invented and who by?

And by whom ...

Barlow's wheel, 1882 by Peter Barlow

But I think you ask for Moritz Jacobi, (first electrical motor in 1834) and followed by the first motor powered boat with ability to carry eight persons in 1838.

It is, however, always hard to pinpoint the exact time for each and every invention from that period, especially when it concerns electricity and mechanics, because, as it is known, the pattents were sold for nothing and true inventors were sometimes not recognised.