InterviewSolution
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InterviewSolution
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Figure (a) shows an arrangement of three charged particles separted by distance d. Particles A and C are fixed on the x-axis, but particle B can be moved along a circle centered on particle A. During the movement, a radial line between A and B makes an angle theta relative to the positive direction of the x-axis (Fig. b). The curves in Fig. c give, for two situations, the magnitude F_("net") of the net electrostatic force on particle A due to the other particles. That net force if given as a function of angle theta and as a multiple of a basic amount F_(0). For example on curve 1, at theta=180^(@) we see that F_("net")=2F_(0). (a) For the situation corresponding to curve 1, what is the ratio of the charge of particle C to that of particle B (including sign)? (b) For the situation corresponding tocurve 2, what is that ratio? |
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