Question

The potential energy of a proton is $3.2\times {10}^{-18}J$ at a particular point. The electric potential at this point is:

(Given charge on a proton is $1.6\times {10}^{-19}C$)

• A. $5V$
• B. $10V$
• C. $20V$
• D. $15V$

Answer 1

The correct option is C $20V$

Potential energy is given by: $U=qV$
Potential energy $U=3.2\times {10}^{-18}J$
$\Rightarrow V=\frac{3.2\times {10}^{-18}}{1.6\times {10}^{-19}}$
$V=20V$