Report copyright - Homopolar(Motor( - Exploratoriumisaac.exploratorium.edu/.../Summer2011LindaJulie/homopolar2.pdf · Itreallyhelpsifthewirehasitscenterofgravityeitherdirectlybelowthepointit balancesorclosetounderneaththepointitbalanceson.Ifthecenterofgravityis!
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