{"type":"rich","version":"1.0","title":"Conservation of charge","html":"<span class=\"wb-embed wb-embed-math\" data-latex=\"\\sum Q = C\">\\sum Q = C</span><div class=\"wb-embed-note\"><p>where C is a constant for any closed system.\n</p></div><footer><cite class=\"wb-embed-author\">Rong Martin-Siebler ZHOU</cite></footer>","width":640,"height":320}