Consider two identical insulated metal spheres, A and B. Sphere A initially has a charge of -6.0 units and sphere B initially has an initial charge of 2.0 units. The sphere are brought in contact with each other for a short time and then separated again. What is the charge on each sphere afterward

-2 units of charge

Explanation:

charge on A = Qa = -6 units

charge on B = Qb = 2 units

if the spheres are brought in contact with each other, the resultant charge will be evenly distributed on the spheres when they are finally separated.

charge on each sphere will be =

charge on each sphere =   = = -2 units of charge

at right angles to each other