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[" An electron in potentiometer wire exp...

[" An electron in potentiometer wire experiences a force "2.4times10^(-19)N" .The length "],[" of potentiometer wire is "6m" .The emf of the battery connected across the wire is: "],[" (electronic charge "=1.6times10^(-19)C)],[" 1) "6vv," 2) "9Vquad " 3) "12Vquad " 4) "15V]

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