In physics, charge conservation is the principle that electric charge can neither be created nor destroyed. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved. Charge conservation was first proposed by British scientist William Watson in 1746 and American statesman and scientist Benjamin Franklin in 1747, although the first convincing proof was given by Michael Faraday in 1843.

Answer this question: who discovered law of conservation of electric charge? Let's think fast. Stream of consciousness:
The important part for answering this question is: Charge conservation was first proposed by British scientist William Watson in 1746 and American statesman and scientist Benjamin Franklin in 1747, although the first convincing proof was given by Michael Faraday in 1843. So the final answer is first proposed by British scientist William Watson in 1746 and American statesman and scientist Benjamin Franklin in 1747 , although the first convincing proof was given by Michael Faraday in 1843.