Consider Three Identical Metal Spheres, A, B, and C

question 4

Multiple Choice

Consider three identical metal spheres, A, B, and C.Sphere A carries a charge of -2.0 µC; sphere B carries a charge of -6.0 µC; and sphere C carries a charge of +4.0 µC.Spheres A and B are touched together and then separated.Spheres B and C are then touched and separated.Does sphere C end up with an excess or a deficiency of electrons and how many electrons is it?

• A)deficiency, 6 × 10¹³
• B)excess, 3 × 10¹³
• C)excess, 2 × 10¹³
• D)deficiency, 3 × 10¹²
• E)There is no excess or deficiency of electrons.

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