1.

A charge of \[{{10}^{-9}}C\] is placed on each of the 64 identical drops of radius \[2cm\]. They are then combined to form a bigger drop. Find its potential       [MP PET 1997]

A.         \[7.2\times {{10}^{3}}V\]
B.            \[7.2\times {{10}^{2}}V\]
C.         \[1.44\times {{10}^{2}}V\]        
D.            \[1.44\times {{10}^{3}}V\]
Answer» B.            \[7.2\times {{10}^{2}}V\]


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