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A hollow metal sphere A of radius 6 cm is uniformly charged with 10 micro coulomb​​.Another hollow metal sphere B of radius 3 cm is uniformly charged with

6 micro coulomb.A and B are connected externally by a wire. Now from where to where does the charge flow and what is its magnitude?


The net electric field will remain constant and an equal charge will develop on both spheres at equilibrium.

kq1/r1 + kq2/r2 = kq/r1 + kq/r2

Putting the values we get q=22/3 micro coulomb and charge flows from 10 micro coulomb sphere to 6 micro coulomb sphere.
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