1. Charges are placed on the x axis as follows:
q1 = +2µC at x = 0, q2 = -3µC at x = 2m, q3 = -4µC at x = 3m, and q4 = +1µC at x = 3.5m. What is the magnitude and direction of the force on q3?
q1 = +2µC at x = 0, q2 = -3µC at x = 2m, q3 = -4µC at x = 3m, and q4 = +1µC at x = 3.5m. What is the magnitude and direction of the force on q3?
2. A charge q1 = + 4µC (1 µC = 10-6 C) is positioned at the origin. A charge q2 = + 9µC is positioned on the x axis at x = 4m. Where on the x axis can a negative charge q3 be placed so that the force on it is zero? Is there any position off the x axis where the force on q3 will be zero?
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