Homework 21.65
Figure 21-24
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The initial charges on the three identical metal spheres in Fig 21-24 are the following:
Sphere A, Q;
sphere B, - Q/4;
and sphere C, Q/2, where Q = 2.00 x 10-14 C. Spheres A and B are fixed in place,
with a center to center separation of d = 1.20 m,
which is much larger than the spheres. Sphere C is touched first to sphere A and then to sphere
B and is then removed.
What then is the magnitude of the electrostatic force between spheres A and B?