Question: Three charges are placed as shown in Fig. 21.52. The magnitude of q1 is 2.00 µC, but its sign and the value of the charge

Three charges are placed as shown in Fig. 21.52. The magnitude of q1 is 2.00 µC, but its sign and the value of the charge q2 are not known. Charge q3 is +4.00 µC, and the net force F on q3 is entirely in the negative direction.
(a) Considering the different possible signs of q1 and there are four possible force diagrams representing the forces F1 and F2 that q1 and q2 exert on q3. Sketch these four possible force configurations.
(b) Using the sketches from part (a) and the direction of F, deduce the signs of the charges q1 and q2.
(c) Calculate the magnitude of q2.
(d) Determine F, the magnitude of the net force on q3.

93 F- 4.00 cm 3,00 cm 92 5.00 cm

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