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Unformatted text preview: positive charges exert on – Q . (c) What is the net force on the charge – Q when it is at the origin x =0? (d) Graph the xcomponent of the net force on the charge – Q as a function of x for values of x between 4 a and +4 a . 21.74. Two identical spheres with mass m are hung from silk threads of length L , as shown in the figure Each sphere has the same charge, so q 1 = q 2 = q . The radius of each sphere is very small compared to the distance between the spheres, so they may be treated as point charges. Suppose that the angle θ is small, and find the equilibrium separation d between the spheres (Hint: If θ is small, then sin( θ ) = tan( θ ) = θ )...
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 Winter '11
 Winn
 Charge, Force, Electric charge, NC, 0.200 M, net force, negative point charge, 0.296 m

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