Consider three point charges arranged along the xx axis. Charge q1 = -4.60 nCnC is located at x= 0.220 mm and charge q2 = 2.90 nCnC is at x= -0.320 mm . A positive point charge q3 is located at the origin.
a)Calculate the value of q3 such that the net force on this point charge has a magnitude of 4.00 μN
b)Where along the x axis can q3 be placed and the net force on it be zero, other than the trivial answers of x=+∞ and x=−∞?
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