Problem 7. Two identical conducting small spheres are placed with their centers r = 0.300 m apart. One is given a charge
of q1 = 12.0 nC and the other a charge of q2 = −18.0 nC. (a) Find the electric force exerted by one sphere on the other.
(b) Next, the spheres are connected by a conducting wire. Find the electric force between the two after they have come to
equilibrium.
Force
Attractive force
(B)
the spheres are connected by a conducting wire
Repulsive force
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