# The positive charge 15 microc is at x20 m and the

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Unformatted text preview: arges •  At a great distance from the charges, the ﬁeld would be approximately that of a single charge of 2q •  The bulging out of the ﬁeld lines between the charges indicates the repulsion between the charges. •  The low ﬁeld lines between the charges indicates a weak ﬁeld in this region. Electric Field Pa8erns •  Unequal and unlike charges •  Note that two lines leave the +2q charge for each line that terminates on –q •  At a great distance from the charges, the ﬁeld would be equivalent to that of a single charge +q Two charges lie along the x-axis. The positive charge 15 microC is at x=2.0 m, and the other positive charge of 6.0 microC is at the origin. a)  Find the electric force on the charge at origin. b) Where must a negative charge be placed on the x-axis so that the resultant electric force on it is zero? Conductors in Electrosta:c Equilibrium •  When no net mo:on of charge occurs within a conductor, the co...
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