Student or Learner
What's wrong with this sentence? In my opinion "are based" part must be changed!
In 1831, English physicist, Michael Farady, discovered the principle of electromagnetic induction, which the electric motor and the electric generator are based.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.
Too many commas.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
I like "upon which..." or "...based on."
What about "upon" instead of "on" ?