If `4 xx 10^(20)eV` energy is required to move a charge of `0.25` coulomb between two points. Then what will be the potential difference between them ?

Options

A. 178 V
B. 256 V
C. 356 V
D. None of these

Answer

B

Explanation

Using the relation for potential difference
`V=(W)/(q_(0))`
[here, `W=4xx10^(2)eV=4xx10^(20)xx1.6xx10^(-19)=64J`]
`q_(0)=0.25C`
`V=(64)/(0.25)=256V`