If two identical conducting spheres are in contact, any excess charge will be evenly distributed between the two. Three identical metal spheres are labeled A, B, and C. Initially, A has charge q, B has charge −q/2, and C is uncharged. Part A. What is the final charge on each sphere if  C  is touched to  B , removed, and then touched to  A ? Express your answers separated by commas in terms of  q . Part B. Starting again from the initial conditions, what is the charge on each sphere if  C  is touched to  A , removed, and then touched to  B ? Express your answers separated by commas in terms of  q .

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.