Question

A body has a total charge of $6.4\times {10}^{-19}$coulomb. It is :

• A. possible
• B. not possible
• C. may or may not be possible
• D. Data insufficient

Answer 1

The correct option is A possible

Total charge must be quantized i.e., it must be a multiple of charge of $e^{-}$ $=$ $1\cdot 6\times {10}^{-19}C$
as $4\times (1\cdot 6\times {10}^{-19})=6\cdot 4\times {10}^{-19}$
this charge is possible ($4e^{-}$)