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When a test charge qo 7 nC is placed at the origin, it experiences a force of 8 x 104 N in the positive y direction. (a) What is the electric field at the origin? N/C j D what would be the force on a charge of -4 nC placed at the aign N j (c) If this force is due to a charge on the y axis at y 3 cm, what is that charge (magnitude and sign)? nc eBook +4 points Tipler6 21 P041.soln. Two equal psive charges of magnitude q1 2 2.5 nC are on the y axis at y1 +3 cm and y23 cm. a) What is the magnitude and direction of the electric field on the x axis at x 2 cm? N/Ci N/C j (b) What is the force exerted on a third charge qo8 nC when it is placed on the x axis at x 2 cm? Ni eBook

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