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(Solved): Question 5. You may have noticed that the spheres are Styrofoam coated with conductive metal paint ...
Question 5. You may have noticed that the spheres are Styrofoam coated with conductive metal paint. Why must the spheres be conducting spheres for this attractive force to occur as illustrated in Figure 3?
Expert Answer
As styrofoam is an insulator it will be difficult to charge it. So there we can use this