A small sphere is charged to a potential of 50 V and a big hollow sphere is charged to potential of

Question

A small sphere is charged to a potential of 50 V and a big hollow sphere is charged to potential of 100 V . Charge will flow from the smaller sphere to the bigger one when.\

Professor PC Thomas Classes · Answer

Potential at any inside point is equal to potential at surface. Charge normally flows from higher potential to lower potential but when smaller sphere is placed inside bigger sphere, its potential becomes $(50+100)$. Hence charge flows from smaller to bigger sphere.\