 
<translate> Muhimmin bangare don amsa wannan tambayar shine: Masanin kimiyyar Burtaniya William Watson ne ya fara ba da shawarar adana caji a 1746 da kuma ɗan siyasar Amurka kuma masanin kimiyya Benjamin Franklin a 1747, kodayake Michael Faraday ne ya ba da tabbaci na farko a 1843. Saboda haka, masanin kimiyya na Birtaniya William Watson ne ya fara ba da amsa ta ƙarshe a shekara ta 1746 da kuma ɗan siyasa kuma masanin kimiyya na Amirka Benjamin Franklin a shekara ta 1747, ko da yake Michael Faraday ne ya ba da tabbaci na farko a shekara ta 1843. <eng> 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. 