Discuss why a motor also tends to act as a generator. Both the English physicist Michael Faraday and the American physicist Joseph Henry independently discovered electromagnet induction at about the...

Discuss why a motor also tends to act as a generator. Both the English physicist Michael Faraday and the American physicist Joseph Henry independently discovered electromagnet induction at about the same time. In Henry’s electrical experiments, his wife sacrificed part of her wedding gown for silk to insulate the wires of his electromagnets. What was the purpose of the silk covering?