Question

The plot of $x$ component of electric field as a function of $x$ in certain region is shown in the figure.The $y$ and $z$ components the electric field are zero in this region.The electric potential at origin is $10V$.
Electric potential at $x=2m$ is

• A. $10V$
• B. $20V$
• C. $30V$
• D. $40V$

Answer 1

The correct option is B $20V$

Electric point at origin $=10V$

Electric potential $x=2m$

Now, $E=2\times 10=20V$