English scientist born in 1791 into a poor family…

English scientist born in 1791 into a poor family, who began as a bookbinder's apprentice before becoming assistant to Humphry Davy at the Royal Institution. In 1831 he discovered electromagnetic induction, the principle behind electric generators and transformers. He built an early electric motor, formulated the laws of electrolysis and showed that a metal enclosure shields its interior from electric fields. The SI unit of capacitance is named after him.

The answer in 14 letters