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Consider three charges placed in a straight line. Charges A and B are separated by 1.00...

Consider three charges placed in a straight line. Charges A and B are separated by 1.00 m. The magnitude of the charges A and B are, qa= 20.0 μC; and qb= -5.0 0μC. The charge is qc has a small but unknown charge.  

<--------------- (qa)--------------------- (qb) ---------->

Show that the only location where qc can experience a zero net force is in the region to the right of both charges. Show that both the magnitude and sign of qc do not affect this result.  Find the position at which the charge qc can be placed such that it experiences a zero net force.

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