Electric Charge

Step 1: Understand the concept of quantization of charge.
Charge on any object must be an integral multiple of elementary charge:
Step 2: Check divisibility of each given charge by . \begin{itemize} \item Option (1): → valid. \item Option (2): → valid. \item Option (3): → not an integer → not valid. \item Option (4): → valid. \end{itemize} So, the charge in option (3) is not a multiple of the elementary charge and hence cannot exist on any charged body.