1)

If 1000 droplets each of potential 1V and radius r are mixed to form a big drop. Then, the potential of the drop as compared to small droplets , will be 


A) 1000V

B) 800V

C) 100V

D) 20V

Answer:

Option C

Explanation:

Potential  of big drop =$q \times n^{2/3}=100 V$