$$27$$ identical drops of mercury are charged simultaneously to the same potential of $$10$$ volt each assuming drops to be spherical, if all the charged drops are made to combine to form one large drop, then the potential of larger drop would be

Question

$$27$$  identical drops of mercury are charged simultaneously to the same potential  of $$10$$ volt each assuming drops to be spherical, if all the charged drops are  made to combine to form one large drop, then the potential of larger drop  would be

Infinity Learn · Accepted Answer

Radius of big drop, $$R=3$$ r                                               [∵ $$43$$  π $$R3=27$$×$$43$$ π $$r3$$]     $$V=27$$  $$q4$$ π ∈$$0$$ $$R=27$$ $$q4$$ π ∈$$0(3$$  $$r)$$     $$=9(q4$$ π ∈$$0r)=9$$  ×  $$10=90$$ V

27 identical drops of mercury are charged simultaneously to the same potential of 10 volt each assuming drops to be spherical, if all the charged drops are made to combine to form one large drop, then the potential of larger drop would be

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