However, Franklin's main contribution to the theory of electricity was his suggestion that charge came in two types, which he called positive and negative, with like charges repelling each other and unlike charges attracting.
(Franklin's main contribution to the theory of electricity; was; his suggestion that charge came in two types, which he called positive and negative, with like charges repelling each other and unlike charges) (charge; came; T:in two types, which he called positive and negative, with like charges repelling each other and unlike charges) (two types; called; positive and negative) (charges; repelling; each other) (charges; attracting; )
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was came called repelling attracting
his suggestion that charge came in two types, which he called positive and negative, with like charges repelling each other and unlike charges
T:in two types, which he called positive and negative, with like charges repelling each other and unlike charges
positive and negative
each other