27 spherical droplets of radius 3um and each carry 10^-12C of charge are combined to form a bigger drop find capacitance of bigger drop
Q. Eight identical spherical drops, each carrying a charge 1 nC are at a potential of 900 V each. All these drops combine together to form a single large drop. Calculate the potential of this large drop. (Assume no wastage of any kind and take the capacitance of a sphere of radius r as proportional to r).