Two charges QA = +2 ?C and QB = - 6?C are located on the x-axis at xA= - 1 cm and xB= +2 cm respectively. Where should a third charge, QC = + 3?C, be placed on the positive x-axis so that the potential at the origin is equal to zero?
A)
x = 4 cm
B)
x = +1 cm
C)
x =+2 cm
D)
x = 3 cm
E)
x = 5 cm
D
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