There are 64 drops charged to a potential 100 volts each. These drops combine to form a bigger drop. Calculate electric potential at the surface of bigger drop.

Explanation

To solve the problem of finding the electric potential at the surface of a bigger drop formed by 64 smaller drops, we can follow these steps:

### Step 1: Understand the relationship between charge, potential, and radius
The electric potential \( V \) at the surface of a charged sphere is given by the formula:
\[ V = \frac{kQ}{R} \]
where \( k \) is Coulomb's constant, \( Q \) is the total charge, and \( R \) is the radius of the sphere.
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